8215000

素因数分解:

$2^3\times 5^4\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 20243520

約数和(自身を除く): 12028520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 53, 62, 100, 106, 124, 125, 155, 200, 212, 248, 250, 265, 310, 424, 500, 530, 620, 625, 775, 1000, 1060, 1240, 1250, 1325, 1550, 1643, 2120, 2500, 2650, 3100, 3286, 3875, 5000, 5300, 6200, 6572, 6625, 7750, 8215, 10600, 13144, 13250, 15500, 16430, 19375, 26500, 31000, 32860, 33125, 38750, 41075, 53000, 65720, 66250, 77500, 82150, 132500, 155000, 164300, 205375, 265000, 328600, 410750, 821500, 1026875, 1643000, 2053750, 4107500, 8215000]

約数ペア:

[(1, 8215000), (2, 4107500), (4, 2053750), (5, 1643000), (8, 1026875), (10, 821500), (20, 410750), (25, 328600), (31, 265000), (40, 205375), (50, 164300), (53, 155000), (62, 132500), (100, 82150), (106, 77500), (124, 66250), (125, 65720), (155, 53000), (200, 41075), (212, 38750), (248, 33125), (250, 32860), (265, 31000), (310, 26500), (424, 19375), (500, 16430), (530, 15500), (620, 13250), (625, 13144), (775, 10600), (1000, 8215), (1060, 7750), (1240, 6625), (1250, 6572), (1325, 6200), (1550, 5300), (1643, 5000), (2120, 3875), (2500, 3286), (2650, 3100)]