72030020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 170989056

約数和(自身を除く): 98959036

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 61, 68, 85, 92, 115, 122, 151, 170, 230, 244, 302, 305, 340, 391, 460, 604, 610, 755, 782, 1037, 1220, 1403, 1510, 1564, 1955, 2074, 2567, 2806, 3020, 3473, 3910, 4148, 5134, 5185, 5612, 6946, 7015, 7820, 9211, 10268, 10370, 12835, 13892, 14030, 17365, 18422, 20740, 23851, 25670, 28060, 34730, 36844, 46055, 47702, 51340, 59041, 69460, 92110, 95404, 118082, 119255, 156587, 184220, 211853, 236164, 238510, 295205, 313174, 423706, 477020, 590410, 626348, 782935, 847412, 1059265, 1180820, 1565870, 2118530, 3131740, 3601501, 4237060, 7203002, 14406004, 18007505, 36015010, 72030020]

約数ペア:

[(1, 72030020), (2, 36015010), (4, 18007505), (5, 14406004), (10, 7203002), (17, 4237060), (20, 3601501), (23, 3131740), (34, 2118530), (46, 1565870), (61, 1180820), (68, 1059265), (85, 847412), (92, 782935), (115, 626348), (122, 590410), (151, 477020), (170, 423706), (230, 313174), (244, 295205), (302, 238510), (305, 236164), (340, 211853), (391, 184220), (460, 156587), (604, 119255), (610, 118082), (755, 95404), (782, 92110), (1037, 69460), (1220, 59041), (1403, 51340), (1510, 47702), (1564, 46055), (1955, 36844), (2074, 34730), (2567, 28060), (2806, 25670), (3020, 23851), (3473, 20740), (3910, 18422), (4148, 17365), (5134, 14030), (5185, 13892), (5612, 12835), (6946, 10370), (7015, 10268), (7820, 9211)]