305115720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{27941}}^1$

素因数の和:27975

約数の個数: 128

約数和(自身を含む): 1126621440

約数和(自身を除く): 821505720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 27941, 55882, 83823, 111764, 139705, 167646, 195587, 223528, 279410, 335292, 363233, 391174, 419115, 558820, 586761, 670584, 726466, 782348, 838230, 977935, 1089699, 1117640, 1173522, 1452932, 1564696, 1676460, 1816165, 1955870, 2179398, 2347044, 2542631, 2905864, 2933805, 3352920, 3632330, 3911740, 4358796, 4694088, 5085262, 5448495, 5867610, 7264660, 7627893, 7823480, 8717592, 10170524, 10896990, 11735220, 12713155, 14529320, 15255786, 20341048, 21793980, 23470440, 25426310, 30511572, 38139465, 43587960, 50852620, 61023144, 76278930, 101705240, 152557860, 305115720]

約数ペア:

[(1, 305115720), (2, 152557860), (3, 101705240), (4, 76278930), (5, 61023144), (6, 50852620), (7, 43587960), (8, 38139465), (10, 30511572), (12, 25426310), (13, 23470440), (14, 21793980), (15, 20341048), (20, 15255786), (21, 14529320), (24, 12713155), (26, 11735220), (28, 10896990), (30, 10170524), (35, 8717592), (39, 7823480), (40, 7627893), (42, 7264660), (52, 5867610), (56, 5448495), (60, 5085262), (65, 4694088), (70, 4358796), (78, 3911740), (84, 3632330), (91, 3352920), (104, 2933805), (105, 2905864), (120, 2542631), (130, 2347044), (140, 2179398), (156, 1955870), (168, 1816165), (182, 1676460), (195, 1564696), (210, 1452932), (260, 1173522), (273, 1117640), (280, 1089699), (312, 977935), (364, 838230), (390, 782348), (420, 726466), (455, 670584), (520, 586761), (546, 558820), (728, 419115), (780, 391174), (840, 363233), (910, 335292), (1092, 279410), (1365, 223528), (1560, 195587), (1820, 167646), (2184, 139705), (2730, 111764), (3640, 83823), (5460, 55882), (10920, 27941)]