82990100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1409}}^1$

素因数の和:1473

約数の個数: 72

約数和(自身を含む): 195820800

約数和(自身を除く): 112830700

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 475, 589, 620, 775, 950, 1178, 1409, 1550, 1900, 2356, 2818, 2945, 3100, 5636, 5890, 7045, 11780, 14090, 14725, 26771, 28180, 29450, 35225, 43679, 53542, 58900, 70450, 87358, 107084, 133855, 140900, 174716, 218395, 267710, 436790, 535420, 669275, 829901, 873580, 1091975, 1338550, 1659802, 2183950, 2677100, 3319604, 4149505, 4367900, 8299010, 16598020, 20747525, 41495050, 82990100]

約数ペア:

[(1, 82990100), (2, 41495050), (4, 20747525), (5, 16598020), (10, 8299010), (19, 4367900), (20, 4149505), (25, 3319604), (31, 2677100), (38, 2183950), (50, 1659802), (62, 1338550), (76, 1091975), (95, 873580), (100, 829901), (124, 669275), (155, 535420), (190, 436790), (310, 267710), (380, 218395), (475, 174716), (589, 140900), (620, 133855), (775, 107084), (950, 87358), (1178, 70450), (1409, 58900), (1550, 53542), (1900, 43679), (2356, 35225), (2818, 29450), (2945, 28180), (3100, 26771), (5636, 14725), (5890, 14090), (7045, 11780)]