28808520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1$

素因数の和:399

約数の個数: 128

約数和(自身を含む): 94953600

約数和(自身を除く): 66145080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 59, 60, 65, 78, 104, 118, 120, 130, 156, 177, 195, 236, 260, 295, 312, 313, 354, 390, 472, 520, 590, 626, 708, 767, 780, 885, 939, 1180, 1252, 1416, 1534, 1560, 1565, 1770, 1878, 2301, 2360, 2504, 3068, 3130, 3540, 3756, 3835, 4069, 4602, 4695, 6136, 6260, 7080, 7512, 7670, 8138, 9204, 9390, 11505, 12207, 12520, 15340, 16276, 18408, 18467, 18780, 20345, 23010, 24414, 30680, 32552, 36934, 37560, 40690, 46020, 48828, 55401, 61035, 73868, 81380, 92040, 92335, 97656, 110802, 122070, 147736, 162760, 184670, 221604, 240071, 244140, 277005, 369340, 443208, 480142, 488280, 554010, 720213, 738680, 960284, 1108020, 1200355, 1440426, 1920568, 2216040, 2400710, 2880852, 3601065, 4801420, 5761704, 7202130, 9602840, 14404260, 28808520]

約数ペア:

[(1, 28808520), (2, 14404260), (3, 9602840), (4, 7202130), (5, 5761704), (6, 4801420), (8, 3601065), (10, 2880852), (12, 2400710), (13, 2216040), (15, 1920568), (20, 1440426), (24, 1200355), (26, 1108020), (30, 960284), (39, 738680), (40, 720213), (52, 554010), (59, 488280), (60, 480142), (65, 443208), (78, 369340), (104, 277005), (118, 244140), (120, 240071), (130, 221604), (156, 184670), (177, 162760), (195, 147736), (236, 122070), (260, 110802), (295, 97656), (312, 92335), (313, 92040), (354, 81380), (390, 73868), (472, 61035), (520, 55401), (590, 48828), (626, 46020), (708, 40690), (767, 37560), (780, 36934), (885, 32552), (939, 30680), (1180, 24414), (1252, 23010), (1416, 20345), (1534, 18780), (1560, 18467), (1565, 18408), (1770, 16276), (1878, 15340), (2301, 12520), (2360, 12207), (2504, 11505), (3068, 9390), (3130, 9204), (3540, 8138), (3756, 7670), (3835, 7512), (4069, 7080), (4602, 6260), (4695, 6136)]