989966398420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^2\times {\mathrm{73}}^1\times {\mathrm{306953}}^1$

素因数の和:307129

約数の個数: 72

約数和(自身を含む): 2153207413224

約数和(自身を除く): 1163241014804

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 292, 365, 470, 730, 940, 1460, 2209, 3431, 4418, 6862, 8836, 11045, 13724, 17155, 22090, 34310, 44180, 68620, 161257, 306953, 322514, 613906, 645028, 806285, 1227812, 1534765, 1612570, 3069530, 3225140, 6139060, 14426791, 22407569, 28853582, 44815138, 57707164, 72133955, 89630276, 112037845, 144267910, 224075690, 288535820, 448151380, 678059177, 1053155743, 1356118354, 2106311486, 2712236708, 3390295885, 4212622972, 5265778715, 6780591770, 10531557430, 13561183540, 21063114860, 49498319921, 98996639842, 197993279684, 247491599605, 494983199210, 989966398420]

約数ペア:

[(1, 989966398420), (2, 494983199210), (4, 247491599605), (5, 197993279684), (10, 98996639842), (20, 49498319921), (47, 21063114860), (73, 13561183540), (94, 10531557430), (146, 6780591770), (188, 5265778715), (235, 4212622972), (292, 3390295885), (365, 2712236708), (470, 2106311486), (730, 1356118354), (940, 1053155743), (1460, 678059177), (2209, 448151380), (3431, 288535820), (4418, 224075690), (6862, 144267910), (8836, 112037845), (11045, 89630276), (13724, 72133955), (17155, 57707164), (22090, 44815138), (34310, 28853582), (44180, 22407569), (68620, 14426791), (161257, 6139060), (306953, 3225140), (322514, 3069530), (613906, 1612570), (645028, 1534765), (806285, 1227812)]