401021000

素因数分解:

$2^3\times 5^3\times {\mathrm{41}}^1\times {\mathrm{9781}}^1$

素因数の和:9843

約数の個数: 64

約数和(自身を含む): 961374960

約数和(自身を除く): 560353960

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 41, 50, 82, 100, 125, 164, 200, 205, 250, 328, 410, 500, 820, 1000, 1025, 1640, 2050, 4100, 5125, 8200, 9781, 10250, 19562, 20500, 39124, 41000, 48905, 78248, 97810, 195620, 244525, 391240, 401021, 489050, 802042, 978100, 1222625, 1604084, 1956200, 2005105, 2445250, 3208168, 4010210, 4890500, 8020420, 9781000, 10025525, 16040840, 20051050, 40102100, 50127625, 80204200, 100255250, 200510500, 401021000]

約数ペア:

[(1, 401021000), (2, 200510500), (4, 100255250), (5, 80204200), (8, 50127625), (10, 40102100), (20, 20051050), (25, 16040840), (40, 10025525), (41, 9781000), (50, 8020420), (82, 4890500), (100, 4010210), (125, 3208168), (164, 2445250), (200, 2005105), (205, 1956200), (250, 1604084), (328, 1222625), (410, 978100), (500, 802042), (820, 489050), (1000, 401021), (1025, 391240), (1640, 244525), (2050, 195620), (4100, 97810), (5125, 78248), (8200, 48905), (9781, 41000), (10250, 39124), (19562, 20500)]