164218780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 96

約数和(自身を含む): 393523200

約数和(自身を除く): 229304420

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 110, 121, 124, 155, 199, 220, 242, 310, 341, 398, 484, 605, 620, 682, 796, 995, 1210, 1331, 1364, 1705, 1990, 2189, 2420, 2662, 3410, 3751, 3980, 4378, 5324, 6169, 6655, 6820, 7502, 8756, 10945, 12338, 13310, 15004, 18755, 21890, 24079, 24676, 26620, 30845, 37510, 41261, 43780, 48158, 61690, 67859, 75020, 82522, 96316, 120395, 123380, 135718, 165044, 206305, 240790, 264869, 271436, 339295, 412610, 481580, 529738, 678590, 746449, 825220, 1059476, 1324345, 1357180, 1492898, 2648690, 2985796, 3732245, 5297380, 7464490, 8210939, 14928980, 16421878, 32843756, 41054695, 82109390, 164218780]

約数ペア:

[(1, 164218780), (2, 82109390), (4, 41054695), (5, 32843756), (10, 16421878), (11, 14928980), (20, 8210939), (22, 7464490), (31, 5297380), (44, 3732245), (55, 2985796), (62, 2648690), (110, 1492898), (121, 1357180), (124, 1324345), (155, 1059476), (199, 825220), (220, 746449), (242, 678590), (310, 529738), (341, 481580), (398, 412610), (484, 339295), (605, 271436), (620, 264869), (682, 240790), (796, 206305), (995, 165044), (1210, 135718), (1331, 123380), (1364, 120395), (1705, 96316), (1990, 82522), (2189, 75020), (2420, 67859), (2662, 61690), (3410, 48158), (3751, 43780), (3980, 41261), (4378, 37510), (5324, 30845), (6169, 26620), (6655, 24676), (6820, 24079), (7502, 21890), (8756, 18755), (10945, 15004), (12338, 13310)]