39137500

素因数分解:

$2^2\times 5^5\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:161

約数の個数: 72

約数和(自身を含む): 89244288

約数和(自身を除く): 50106788

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 101, 124, 125, 155, 202, 250, 310, 404, 500, 505, 620, 625, 775, 1010, 1250, 1550, 2020, 2500, 2525, 3100, 3125, 3131, 3875, 5050, 6250, 6262, 7750, 10100, 12500, 12524, 12625, 15500, 15655, 19375, 25250, 31310, 38750, 50500, 62620, 63125, 77500, 78275, 96875, 126250, 156550, 193750, 252500, 313100, 315625, 387500, 391375, 631250, 782750, 1262500, 1565500, 1956875, 3913750, 7827500, 9784375, 19568750, 39137500]

約数ペア:

[(1, 39137500), (2, 19568750), (4, 9784375), (5, 7827500), (10, 3913750), (20, 1956875), (25, 1565500), (31, 1262500), (50, 782750), (62, 631250), (100, 391375), (101, 387500), (124, 315625), (125, 313100), (155, 252500), (202, 193750), (250, 156550), (310, 126250), (404, 96875), (500, 78275), (505, 77500), (620, 63125), (625, 62620), (775, 50500), (1010, 38750), (1250, 31310), (1550, 25250), (2020, 19375), (2500, 15655), (2525, 15500), (3100, 12625), (3125, 12524), (3131, 12500), (3875, 10100), (5050, 7750), (6250, 6262)]