84021400

素因数分解:

$2^3\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 203424480

約数和(自身を除く): 119403080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 71, 97, 100, 122, 142, 194, 200, 244, 284, 305, 355, 388, 485, 488, 568, 610, 710, 776, 970, 1220, 1420, 1525, 1775, 1940, 2425, 2440, 2840, 3050, 3550, 3880, 4331, 4850, 5917, 6100, 6887, 7100, 8662, 9700, 11834, 12200, 13774, 14200, 17324, 19400, 21655, 23668, 27548, 29585, 34435, 34648, 43310, 47336, 55096, 59170, 68870, 86620, 108275, 118340, 137740, 147925, 172175, 173240, 216550, 236680, 275480, 295850, 344350, 420107, 433100, 591700, 688700, 840214, 866200, 1183400, 1377400, 1680428, 2100535, 3360856, 4201070, 8402140, 10502675, 16804280, 21005350, 42010700, 84021400]

約数ペア:

[(1, 84021400), (2, 42010700), (4, 21005350), (5, 16804280), (8, 10502675), (10, 8402140), (20, 4201070), (25, 3360856), (40, 2100535), (50, 1680428), (61, 1377400), (71, 1183400), (97, 866200), (100, 840214), (122, 688700), (142, 591700), (194, 433100), (200, 420107), (244, 344350), (284, 295850), (305, 275480), (355, 236680), (388, 216550), (485, 173240), (488, 172175), (568, 147925), (610, 137740), (710, 118340), (776, 108275), (970, 86620), (1220, 68870), (1420, 59170), (1525, 55096), (1775, 47336), (1940, 43310), (2425, 34648), (2440, 34435), (2840, 29585), (3050, 27548), (3550, 23668), (3880, 21655), (4331, 19400), (4850, 17324), (5917, 14200), (6100, 13774), (6887, 12200), (7100, 11834), (8662, 9700)]