218123750

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:499

約数の個数: 80

約数和(自身を含む): 455554176

約数和(自身を除く): 237430426

約数列:

[1, 2, 5, 10, 13, 25, 26, 31, 50, 62, 65, 125, 130, 155, 250, 310, 325, 403, 433, 625, 650, 775, 806, 866, 1250, 1550, 1625, 2015, 2165, 3250, 3875, 4030, 4330, 5629, 7750, 8125, 10075, 10825, 11258, 13423, 16250, 19375, 20150, 21650, 26846, 28145, 38750, 50375, 54125, 56290, 67115, 100750, 108250, 134230, 140725, 174499, 251875, 270625, 281450, 335575, 348998, 503750, 541250, 671150, 703625, 872495, 1407250, 1677875, 1744990, 3355750, 3518125, 4362475, 7036250, 8389375, 8724950, 16778750, 21812375, 43624750, 109061875, 218123750]

約数ペア:

[(1, 218123750), (2, 109061875), (5, 43624750), (10, 21812375), (13, 16778750), (25, 8724950), (26, 8389375), (31, 7036250), (50, 4362475), (62, 3518125), (65, 3355750), (125, 1744990), (130, 1677875), (155, 1407250), (250, 872495), (310, 703625), (325, 671150), (403, 541250), (433, 503750), (625, 348998), (650, 335575), (775, 281450), (806, 270625), (866, 251875), (1250, 174499), (1550, 140725), (1625, 134230), (2015, 108250), (2165, 100750), (3250, 67115), (3875, 56290), (4030, 54125), (4330, 50375), (5629, 38750), (7750, 28145), (8125, 26846), (10075, 21650), (10825, 20150), (11258, 19375), (13423, 16250)]