78275000

素因数分解:

$2^3\times 5^5\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 96

約数和(自身を含む): 191237760

約数和(自身を除く): 112962760

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 101, 124, 125, 155, 200, 202, 248, 250, 310, 404, 500, 505, 620, 625, 775, 808, 1000, 1010, 1240, 1250, 1550, 2020, 2500, 2525, 3100, 3125, 3131, 3875, 4040, 5000, 5050, 6200, 6250, 6262, 7750, 10100, 12500, 12524, 12625, 15500, 15655, 19375, 20200, 25000, 25048, 25250, 31000, 31310, 38750, 50500, 62620, 63125, 77500, 78275, 96875, 101000, 125240, 126250, 155000, 156550, 193750, 252500, 313100, 315625, 387500, 391375, 505000, 626200, 631250, 775000, 782750, 1262500, 1565500, 1956875, 2525000, 3131000, 3913750, 7827500, 9784375, 15655000, 19568750, 39137500, 78275000]

約数ペア:

[(1, 78275000), (2, 39137500), (4, 19568750), (5, 15655000), (8, 9784375), (10, 7827500), (20, 3913750), (25, 3131000), (31, 2525000), (40, 1956875), (50, 1565500), (62, 1262500), (100, 782750), (101, 775000), (124, 631250), (125, 626200), (155, 505000), (200, 391375), (202, 387500), (248, 315625), (250, 313100), (310, 252500), (404, 193750), (500, 156550), (505, 155000), (620, 126250), (625, 125240), (775, 101000), (808, 96875), (1000, 78275), (1010, 77500), (1240, 63125), (1250, 62620), (1550, 50500), (2020, 38750), (2500, 31310), (2525, 31000), (3100, 25250), (3125, 25048), (3131, 25000), (3875, 20200), (4040, 19375), (5000, 15655), (5050, 15500), (6200, 12625), (6250, 12524), (6262, 12500), (7750, 10100)]