20121247125

素因数分解:

$3^3\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{20773}}^1$

素因数の和:20845

約数の個数: 128

約数和(自身を含む): 43555599360

約数和(自身を除く): 23434352235

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 41, 45, 63, 75, 105, 123, 125, 135, 175, 189, 205, 225, 287, 315, 369, 375, 525, 615, 675, 861, 875, 945, 1025, 1107, 1125, 1435, 1575, 1845, 2583, 2625, 3075, 3375, 4305, 4725, 5125, 5535, 7175, 7749, 7875, 9225, 12915, 15375, 20773, 21525, 23625, 27675, 35875, 38745, 46125, 62319, 64575, 103865, 107625, 138375, 145411, 186957, 193725, 311595, 322875, 436233, 519325, 560871, 727055, 851693, 934785, 968625, 1308699, 1557975, 2181165, 2555079, 2596625, 2804355, 3635275, 3926097, 4258465, 4673925, 5961851, 6543495, 7665237, 7789875, 10905825, 12775395, 14021775, 17885553, 18176375, 19630485, 21292325, 22995711, 23369625, 29809255, 32717475, 38326185, 53656659, 54529125, 63876975, 70108875, 89427765, 98152425, 106461625, 114978555, 149046275, 160969977, 163587375, 191630925, 268283295, 319384875, 447138825, 490762125, 574892775, 745231375, 804849885, 958154625, 1341416475, 2235694125, 2874463875, 4024249425, 6707082375, 20121247125]

約数ペア:

[(1, 20121247125), (3, 6707082375), (5, 4024249425), (7, 2874463875), (9, 2235694125), (15, 1341416475), (21, 958154625), (25, 804849885), (27, 745231375), (35, 574892775), (41, 490762125), (45, 447138825), (63, 319384875), (75, 268283295), (105, 191630925), (123, 163587375), (125, 160969977), (135, 149046275), (175, 114978555), (189, 106461625), (205, 98152425), (225, 89427765), (287, 70108875), (315, 63876975), (369, 54529125), (375, 53656659), (525, 38326185), (615, 32717475), (675, 29809255), (861, 23369625), (875, 22995711), (945, 21292325), (1025, 19630485), (1107, 18176375), (1125, 17885553), (1435, 14021775), (1575, 12775395), (1845, 10905825), (2583, 7789875), (2625, 7665237), (3075, 6543495), (3375, 5961851), (4305, 4673925), (4725, 4258465), (5125, 3926097), (5535, 3635275), (7175, 2804355), (7749, 2596625), (7875, 2555079), (9225, 2181165), (12915, 1557975), (15375, 1308699), (20773, 968625), (21525, 934785), (23625, 851693), (27675, 727055), (35875, 560871), (38745, 519325), (46125, 436233), (62319, 322875), (64575, 311595), (103865, 193725), (107625, 186957), (138375, 145411)]