21348960

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:660

約数の個数: 96

約数和(自身を含む): 68221440

約数和(自身を除く): 46872480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 79, 80, 96, 120, 158, 160, 237, 240, 316, 395, 474, 480, 563, 632, 790, 948, 1126, 1185, 1264, 1580, 1689, 1896, 2252, 2370, 2528, 2815, 3160, 3378, 3792, 4504, 4740, 5630, 6320, 6756, 7584, 8445, 9008, 9480, 11260, 12640, 13512, 16890, 18016, 18960, 22520, 27024, 33780, 37920, 44477, 45040, 54048, 67560, 88954, 90080, 133431, 135120, 177908, 222385, 266862, 270240, 355816, 444770, 533724, 667155, 711632, 889540, 1067448, 1334310, 1423264, 1779080, 2134896, 2668620, 3558160, 4269792, 5337240, 7116320, 10674480, 21348960]

約数ペア:

[(1, 21348960), (2, 10674480), (3, 7116320), (4, 5337240), (5, 4269792), (6, 3558160), (8, 2668620), (10, 2134896), (12, 1779080), (15, 1423264), (16, 1334310), (20, 1067448), (24, 889540), (30, 711632), (32, 667155), (40, 533724), (48, 444770), (60, 355816), (79, 270240), (80, 266862), (96, 222385), (120, 177908), (158, 135120), (160, 133431), (237, 90080), (240, 88954), (316, 67560), (395, 54048), (474, 45040), (480, 44477), (563, 37920), (632, 33780), (790, 27024), (948, 22520), (1126, 18960), (1185, 18016), (1264, 16890), (1580, 13512), (1689, 12640), (1896, 11260), (2252, 9480), (2370, 9008), (2528, 8445), (2815, 7584), (3160, 6756), (3378, 6320), (3792, 5630), (4504, 4740)]