2402500

素因数分解:

$2^2\times 5^4\times {\mathrm{31}}^2$

素因数の和:86

約数の個数: 45

約数和(自身を含む): 5428731

約数和(自身を除く): 3026231

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 625, 775, 961, 1250, 1550, 1922, 2500, 3100, 3844, 3875, 4805, 7750, 9610, 15500, 19220, 19375, 24025, 38750, 48050, 77500, 96100, 120125, 240250, 480500, 600625, 1201250, 2402500]

約数ペア:

[(1, 2402500), (2, 1201250), (4, 600625), (5, 480500), (10, 240250), (20, 120125), (25, 96100), (31, 77500), (50, 48050), (62, 38750), (100, 24025), (124, 19375), (125, 19220), (155, 15500), (250, 9610), (310, 7750), (500, 4805), (620, 3875), (625, 3844), (775, 3100), (961, 2500), (1250, 1922)]