2120012500

素因数分解:

$2^2\times 5^5\times {\mathrm{31}}^1\times {\mathrm{5471}}^1$

素因数の和:5531

約数の個数: 72

約数和(自身を含む): 4787693568

約数和(自身を除く): 2667681068

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 775, 1250, 1550, 2500, 3100, 3125, 3875, 5471, 6250, 7750, 10942, 12500, 15500, 19375, 21884, 27355, 38750, 54710, 77500, 96875, 109420, 136775, 169601, 193750, 273550, 339202, 387500, 547100, 678404, 683875, 848005, 1367750, 1696010, 2735500, 3392020, 3419375, 4240025, 6838750, 8480050, 13677500, 16960100, 17096875, 21200125, 34193750, 42400250, 68387500, 84800500, 106000625, 212001250, 424002500, 530003125, 1060006250, 2120012500]

約数ペア:

[(1, 2120012500), (2, 1060006250), (4, 530003125), (5, 424002500), (10, 212001250), (20, 106000625), (25, 84800500), (31, 68387500), (50, 42400250), (62, 34193750), (100, 21200125), (124, 17096875), (125, 16960100), (155, 13677500), (250, 8480050), (310, 6838750), (500, 4240025), (620, 3419375), (625, 3392020), (775, 2735500), (1250, 1696010), (1550, 1367750), (2500, 848005), (3100, 683875), (3125, 678404), (3875, 547100), (5471, 387500), (6250, 339202), (7750, 273550), (10942, 193750), (12500, 169601), (15500, 136775), (19375, 109420), (21884, 96875), (27355, 77500), (38750, 54710)]