20831070

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1777

約数の個数: 64

約数和(自身を含む): 55609344

約数和(自身を除く): 34778274

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 31, 39, 62, 65, 78, 93, 130, 155, 186, 195, 310, 390, 403, 465, 806, 930, 1209, 1723, 2015, 2418, 3446, 4030, 5169, 6045, 8615, 10338, 12090, 17230, 22399, 25845, 44798, 51690, 53413, 67197, 106826, 111995, 134394, 160239, 223990, 267065, 320478, 335985, 534130, 671970, 694369, 801195, 1388738, 1602390, 2083107, 3471845, 4166214, 6943690, 10415535, 20831070]

約数ペア:

[(1, 20831070), (2, 10415535), (3, 6943690), (5, 4166214), (6, 3471845), (10, 2083107), (13, 1602390), (15, 1388738), (26, 801195), (30, 694369), (31, 671970), (39, 534130), (62, 335985), (65, 320478), (78, 267065), (93, 223990), (130, 160239), (155, 134394), (186, 111995), (195, 106826), (310, 67197), (390, 53413), (403, 51690), (465, 44798), (806, 25845), (930, 22399), (1209, 17230), (1723, 12090), (2015, 10338), (2418, 8615), (3446, 6045), (4030, 5169)]