20875400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:104

約数の個数: 192

約数和(自身を含む): 63329280

約数和(自身を除く): 42453880

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 25, 26, 28, 31, 35, 37, 40, 50, 52, 56, 62, 65, 70, 74, 91, 100, 104, 124, 130, 140, 148, 155, 175, 182, 185, 200, 217, 248, 259, 260, 280, 296, 310, 325, 350, 364, 370, 403, 434, 455, 481, 518, 520, 620, 650, 700, 728, 740, 775, 806, 868, 910, 925, 962, 1036, 1085, 1147, 1240, 1295, 1300, 1400, 1480, 1550, 1612, 1736, 1820, 1850, 1924, 2015, 2072, 2170, 2275, 2294, 2405, 2590, 2600, 2821, 3100, 3224, 3367, 3640, 3700, 3848, 4030, 4340, 4550, 4588, 4810, 5180, 5425, 5642, 5735, 6200, 6475, 6734, 7400, 8029, 8060, 8680, 9100, 9176, 9620, 10075, 10360, 10850, 11284, 11470, 12025, 12950, 13468, 14105, 14911, 16058, 16120, 16835, 18200, 19240, 20150, 21700, 22568, 22940, 24050, 25900, 26936, 28210, 28675, 29822, 32116, 33670, 40145, 40300, 43400, 45880, 48100, 51800, 56420, 57350, 59644, 64232, 67340, 70525, 74555, 80290, 80600, 84175, 96200, 104377, 112840, 114700, 119288, 134680, 141050, 149110, 160580, 168350, 200725, 208754, 229400, 282100, 298220, 321160, 336700, 372775, 401450, 417508, 521885, 564200, 596440, 673400, 745550, 802900, 835016, 1043770, 1491100, 1605800, 2087540, 2609425, 2982200, 4175080, 5218850, 10437700, 20875400]

約数ペア:

[(1, 20875400), (2, 10437700), (4, 5218850), (5, 4175080), (7, 2982200), (8, 2609425), (10, 2087540), (13, 1605800), (14, 1491100), (20, 1043770), (25, 835016), (26, 802900), (28, 745550), (31, 673400), (35, 596440), (37, 564200), (40, 521885), (50, 417508), (52, 401450), (56, 372775), (62, 336700), (65, 321160), (70, 298220), (74, 282100), (91, 229400), (100, 208754), (104, 200725), (124, 168350), (130, 160580), (140, 149110), (148, 141050), (155, 134680), (175, 119288), (182, 114700), (185, 112840), (200, 104377), (217, 96200), (248, 84175), (259, 80600), (260, 80290), (280, 74555), (296, 70525), (310, 67340), (325, 64232), (350, 59644), (364, 57350), (370, 56420), (403, 51800), (434, 48100), (455, 45880), (481, 43400), (518, 40300), (520, 40145), (620, 33670), (650, 32116), (700, 29822), (728, 28675), (740, 28210), (775, 26936), (806, 25900), (868, 24050), (910, 22940), (925, 22568), (962, 21700), (1036, 20150), (1085, 19240), (1147, 18200), (1240, 16835), (1295, 16120), (1300, 16058), (1400, 14911), (1480, 14105), (1550, 13468), (1612, 12950), (1736, 12025), (1820, 11470), (1850, 11284), (1924, 10850), (2015, 10360), (2072, 10075), (2170, 9620), (2275, 9176), (2294, 9100), (2405, 8680), (2590, 8060), (2600, 8029), (2821, 7400), (3100, 6734), (3224, 6475), (3367, 6200), (3640, 5735), (3700, 5642), (3848, 5425), (4030, 5180), (4340, 4810), (4550, 4588)]