20070120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23893}}^1$

素因数の和:23914

約数の個数: 64

約数和(自身を含む): 68814720

約数和(自身を除く): 48744600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23893, 47786, 71679, 95572, 119465, 143358, 167251, 191144, 238930, 286716, 334502, 358395, 477860, 501753, 573432, 669004, 716790, 836255, 955720, 1003506, 1338008, 1433580, 1672510, 2007012, 2508765, 2867160, 3345020, 4014024, 5017530, 6690040, 10035060, 20070120]

約数ペア:

[(1, 20070120), (2, 10035060), (3, 6690040), (4, 5017530), (5, 4014024), (6, 3345020), (7, 2867160), (8, 2508765), (10, 2007012), (12, 1672510), (14, 1433580), (15, 1338008), (20, 1003506), (21, 955720), (24, 836255), (28, 716790), (30, 669004), (35, 573432), (40, 501753), (42, 477860), (56, 358395), (60, 334502), (70, 286716), (84, 238930), (105, 191144), (120, 167251), (140, 143358), (168, 119465), (210, 95572), (280, 71679), (420, 47786), (840, 23893)]