257321700

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:475

約数の個数: 216

約数和(自身を含む): 870944256

約数和(自身を除く): 613622556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 31, 36, 45, 46, 50, 60, 62, 69, 75, 90, 92, 93, 100, 115, 124, 138, 150, 155, 180, 186, 207, 225, 230, 276, 279, 300, 310, 345, 372, 401, 414, 450, 460, 465, 558, 575, 620, 690, 713, 775, 802, 828, 900, 930, 1035, 1116, 1150, 1203, 1380, 1395, 1426, 1550, 1604, 1725, 1860, 2005, 2070, 2139, 2300, 2325, 2406, 2790, 2852, 3100, 3450, 3565, 3609, 4010, 4140, 4278, 4650, 4812, 5175, 5580, 6015, 6417, 6900, 6975, 7130, 7218, 8020, 8556, 9223, 9300, 10025, 10350, 10695, 12030, 12431, 12834, 13950, 14260, 14436, 17825, 18045, 18446, 20050, 20700, 21390, 24060, 24862, 25668, 27669, 27900, 30075, 32085, 35650, 36090, 36892, 37293, 40100, 42780, 46115, 49724, 53475, 55338, 60150, 62155, 64170, 71300, 72180, 74586, 83007, 90225, 92230, 106950, 110676, 111879, 120300, 124310, 128340, 138345, 149172, 160425, 166014, 180450, 184460, 186465, 213900, 223758, 230575, 248620, 276690, 285913, 310775, 320850, 332028, 360900, 372930, 415035, 447516, 461150, 553380, 559395, 571826, 621550, 641700, 691725, 745860, 830070, 857739, 922300, 932325, 1118790, 1143652, 1243100, 1383450, 1429565, 1660140, 1715478, 1864650, 2075175, 2237580, 2573217, 2766900, 2796975, 2859130, 3430956, 3729300, 4150350, 4288695, 5146434, 5593950, 5718260, 7147825, 8300700, 8577390, 10292868, 11187900, 12866085, 14295650, 17154780, 21443475, 25732170, 28591300, 42886950, 51464340, 64330425, 85773900, 128660850, 257321700]

約数ペア:

[(1, 257321700), (2, 128660850), (3, 85773900), (4, 64330425), (5, 51464340), (6, 42886950), (9, 28591300), (10, 25732170), (12, 21443475), (15, 17154780), (18, 14295650), (20, 12866085), (23, 11187900), (25, 10292868), (30, 8577390), (31, 8300700), (36, 7147825), (45, 5718260), (46, 5593950), (50, 5146434), (60, 4288695), (62, 4150350), (69, 3729300), (75, 3430956), (90, 2859130), (92, 2796975), (93, 2766900), (100, 2573217), (115, 2237580), (124, 2075175), (138, 1864650), (150, 1715478), (155, 1660140), (180, 1429565), (186, 1383450), (207, 1243100), (225, 1143652), (230, 1118790), (276, 932325), (279, 922300), (300, 857739), (310, 830070), (345, 745860), (372, 691725), (401, 641700), (414, 621550), (450, 571826), (460, 559395), (465, 553380), (558, 461150), (575, 447516), (620, 415035), (690, 372930), (713, 360900), (775, 332028), (802, 320850), (828, 310775), (900, 285913), (930, 276690), (1035, 248620), (1116, 230575), (1150, 223758), (1203, 213900), (1380, 186465), (1395, 184460), (1426, 180450), (1550, 166014), (1604, 160425), (1725, 149172), (1860, 138345), (2005, 128340), (2070, 124310), (2139, 120300), (2300, 111879), (2325, 110676), (2406, 106950), (2790, 92230), (2852, 90225), (3100, 83007), (3450, 74586), (3565, 72180), (3609, 71300), (4010, 64170), (4140, 62155), (4278, 60150), (4650, 55338), (4812, 53475), (5175, 49724), (5580, 46115), (6015, 42780), (6417, 40100), (6900, 37293), (6975, 36892), (7130, 36090), (7218, 35650), (8020, 32085), (8556, 30075), (9223, 27900), (9300, 27669), (10025, 25668), (10350, 24862), (10695, 24060), (12030, 21390), (12431, 20700), (12834, 20050), (13950, 18446), (14260, 18045), (14436, 17825)]