642123240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{25603}}^1$

素因数の和:25647

約数の個数: 128

約数和(自身を含む): 2212185600

約数和(自身を除く): 1570062360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 19, 20, 22, 24, 30, 33, 38, 40, 44, 55, 57, 60, 66, 76, 88, 95, 110, 114, 120, 132, 152, 165, 190, 209, 220, 228, 264, 285, 330, 380, 418, 440, 456, 570, 627, 660, 760, 836, 1045, 1140, 1254, 1320, 1672, 2090, 2280, 2508, 3135, 4180, 5016, 6270, 8360, 12540, 25080, 25603, 51206, 76809, 102412, 128015, 153618, 204824, 256030, 281633, 307236, 384045, 486457, 512060, 563266, 614472, 768090, 844899, 972914, 1024120, 1126532, 1408165, 1459371, 1536180, 1689798, 1945828, 2253064, 2432285, 2816330, 2918742, 3072360, 3379596, 3891656, 4224495, 4864570, 5351027, 5632660, 5837484, 6759192, 7296855, 8448990, 9729140, 10702054, 11265320, 11674968, 14593710, 16053081, 16897980, 19458280, 21404108, 26755135, 29187420, 32106162, 33795960, 42808216, 53510270, 58374840, 64212324, 80265405, 107020540, 128424648, 160530810, 214041080, 321061620, 642123240]

約数ペア:

[(1, 642123240), (2, 321061620), (3, 214041080), (4, 160530810), (5, 128424648), (6, 107020540), (8, 80265405), (10, 64212324), (11, 58374840), (12, 53510270), (15, 42808216), (19, 33795960), (20, 32106162), (22, 29187420), (24, 26755135), (30, 21404108), (33, 19458280), (38, 16897980), (40, 16053081), (44, 14593710), (55, 11674968), (57, 11265320), (60, 10702054), (66, 9729140), (76, 8448990), (88, 7296855), (95, 6759192), (110, 5837484), (114, 5632660), (120, 5351027), (132, 4864570), (152, 4224495), (165, 3891656), (190, 3379596), (209, 3072360), (220, 2918742), (228, 2816330), (264, 2432285), (285, 2253064), (330, 1945828), (380, 1689798), (418, 1536180), (440, 1459371), (456, 1408165), (570, 1126532), (627, 1024120), (660, 972914), (760, 844899), (836, 768090), (1045, 614472), (1140, 563266), (1254, 512060), (1320, 486457), (1672, 384045), (2090, 307236), (2280, 281633), (2508, 256030), (3135, 204824), (4180, 153618), (5016, 128015), (6270, 102412), (8360, 76809), (12540, 51206), (25080, 25603)]