256469200

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:142

約数の個数: 240

約数和(自身を含む): 719842816

約数和(自身を除く): 463373616

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 37, 40, 43, 50, 52, 62, 65, 74, 80, 86, 100, 104, 124, 130, 148, 155, 172, 185, 200, 208, 215, 248, 260, 296, 310, 325, 344, 370, 400, 403, 430, 481, 496, 520, 559, 592, 620, 650, 688, 740, 775, 806, 860, 925, 962, 1040, 1075, 1118, 1147, 1240, 1300, 1333, 1480, 1550, 1591, 1612, 1720, 1850, 1924, 2015, 2150, 2236, 2294, 2405, 2480, 2600, 2666, 2795, 2960, 3100, 3182, 3224, 3440, 3700, 3848, 4030, 4300, 4472, 4588, 4810, 5200, 5332, 5590, 5735, 6200, 6364, 6448, 6665, 7400, 7696, 7955, 8060, 8600, 8944, 9176, 9620, 10075, 10664, 11180, 11470, 12025, 12400, 12728, 13330, 13975, 14800, 14911, 15910, 16120, 17200, 17329, 18352, 19240, 20150, 20683, 21328, 22360, 22940, 24050, 25456, 26660, 27950, 28675, 29822, 31820, 32240, 33325, 34658, 38480, 39775, 40300, 41366, 44720, 45880, 48100, 49321, 53320, 55900, 57350, 59644, 63640, 66650, 69316, 74555, 79550, 80600, 82732, 86645, 91760, 96200, 98642, 103415, 106640, 111800, 114700, 119288, 127280, 133300, 138632, 149110, 159100, 161200, 165464, 173290, 192400, 197284, 206830, 223600, 229400, 238576, 246605, 266600, 277264, 298220, 318200, 330928, 346580, 372775, 394568, 413660, 433225, 458800, 493210, 517075, 533200, 596440, 636400, 641173, 693160, 745550, 789136, 827320, 866450, 986420, 1034150, 1192880, 1233025, 1282346, 1386320, 1491100, 1654640, 1732900, 1972840, 2068300, 2466050, 2564692, 2982200, 3205865, 3465800, 3945680, 4136600, 4932100, 5129384, 5964400, 6411730, 6931600, 8273200, 9864200, 10258768, 12823460, 16029325, 19728400, 25646920, 32058650, 51293840, 64117300, 128234600, 256469200]

約数ペア:

[(1, 256469200), (2, 128234600), (4, 64117300), (5, 51293840), (8, 32058650), (10, 25646920), (13, 19728400), (16, 16029325), (20, 12823460), (25, 10258768), (26, 9864200), (31, 8273200), (37, 6931600), (40, 6411730), (43, 5964400), (50, 5129384), (52, 4932100), (62, 4136600), (65, 3945680), (74, 3465800), (80, 3205865), (86, 2982200), (100, 2564692), (104, 2466050), (124, 2068300), (130, 1972840), (148, 1732900), (155, 1654640), (172, 1491100), (185, 1386320), (200, 1282346), (208, 1233025), (215, 1192880), (248, 1034150), (260, 986420), (296, 866450), (310, 827320), (325, 789136), (344, 745550), (370, 693160), (400, 641173), (403, 636400), (430, 596440), (481, 533200), (496, 517075), (520, 493210), (559, 458800), (592, 433225), (620, 413660), (650, 394568), (688, 372775), (740, 346580), (775, 330928), (806, 318200), (860, 298220), (925, 277264), (962, 266600), (1040, 246605), (1075, 238576), (1118, 229400), (1147, 223600), (1240, 206830), (1300, 197284), (1333, 192400), (1480, 173290), (1550, 165464), (1591, 161200), (1612, 159100), (1720, 149110), (1850, 138632), (1924, 133300), (2015, 127280), (2150, 119288), (2236, 114700), (2294, 111800), (2405, 106640), (2480, 103415), (2600, 98642), (2666, 96200), (2795, 91760), (2960, 86645), (3100, 82732), (3182, 80600), (3224, 79550), (3440, 74555), (3700, 69316), (3848, 66650), (4030, 63640), (4300, 59644), (4472, 57350), (4588, 55900), (4810, 53320), (5200, 49321), (5332, 48100), (5590, 45880), (5735, 44720), (6200, 41366), (6364, 40300), (6448, 39775), (6665, 38480), (7400, 34658), (7696, 33325), (7955, 32240), (8060, 31820), (8600, 29822), (8944, 28675), (9176, 27950), (9620, 26660), (10075, 25456), (10664, 24050), (11180, 22940), (11470, 22360), (12025, 21328), (12400, 20683), (12728, 20150), (13330, 19240), (13975, 18352), (14800, 17329), (14911, 17200), (15910, 16120)]