40412500

素因数分解:

$2^2\times 5^5\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 91541016

約数和(自身を除く): 51128516

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 53, 61, 100, 106, 122, 125, 212, 244, 250, 265, 305, 500, 530, 610, 625, 1060, 1220, 1250, 1325, 1525, 2500, 2650, 3050, 3125, 3233, 5300, 6100, 6250, 6466, 6625, 7625, 12500, 12932, 13250, 15250, 16165, 26500, 30500, 32330, 33125, 38125, 64660, 66250, 76250, 80825, 132500, 152500, 161650, 165625, 190625, 323300, 331250, 381250, 404125, 662500, 762500, 808250, 1616500, 2020625, 4041250, 8082500, 10103125, 20206250, 40412500]

約数ペア:

[(1, 40412500), (2, 20206250), (4, 10103125), (5, 8082500), (10, 4041250), (20, 2020625), (25, 1616500), (50, 808250), (53, 762500), (61, 662500), (100, 404125), (106, 381250), (122, 331250), (125, 323300), (212, 190625), (244, 165625), (250, 161650), (265, 152500), (305, 132500), (500, 80825), (530, 76250), (610, 66250), (625, 64660), (1060, 38125), (1220, 33125), (1250, 32330), (1325, 30500), (1525, 26500), (2500, 16165), (2650, 15250), (3050, 13250), (3125, 12932), (3233, 12500), (5300, 7625), (6100, 6625), (6250, 6466)]