309342629375

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:1174

約数の個数: 80

約数和(自身を含む): 420400928640

約数和(自身を除く): 111058299265

約数列:

[1, 5, 13, 25, 65, 125, 239, 241, 325, 625, 661, 1195, 1205, 1625, 3107, 3133, 3305, 5975, 6025, 8125, 8593, 15535, 15665, 16525, 29875, 30125, 42965, 57599, 77675, 78325, 82625, 149375, 150625, 157979, 159301, 214825, 287995, 388375, 391625, 413125, 748787, 789895, 796505, 1074125, 1439975, 1941875, 1958125, 2053727, 2070913, 3743935, 3949475, 3982525, 5370625, 7199875, 10268635, 10354565, 18719675, 19747375, 19912625, 35999375, 38072939, 51343175, 51772825, 93598375, 98736875, 99563125, 190364695, 256715875, 258864125, 467991875, 494948207, 951823475, 1283579375, 1294320625, 2474741035, 4759117375, 12373705175, 23795586875, 61868525875, 309342629375]

約数ペア:

[(1, 309342629375), (5, 61868525875), (13, 23795586875), (25, 12373705175), (65, 4759117375), (125, 2474741035), (239, 1294320625), (241, 1283579375), (325, 951823475), (625, 494948207), (661, 467991875), (1195, 258864125), (1205, 256715875), (1625, 190364695), (3107, 99563125), (3133, 98736875), (3305, 93598375), (5975, 51772825), (6025, 51343175), (8125, 38072939), (8593, 35999375), (15535, 19912625), (15665, 19747375), (16525, 18719675), (29875, 10354565), (30125, 10268635), (42965, 7199875), (57599, 5370625), (77675, 3982525), (78325, 3949475), (82625, 3743935), (149375, 2070913), (150625, 2053727), (157979, 1958125), (159301, 1941875), (214825, 1439975), (287995, 1074125), (388375, 796505), (391625, 789895), (413125, 748787)]