1294395320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{239}}^1\times {\mathrm{1907}}^1$

素因数の和:2228

約数の個数: 64

約数和(自身を含む): 2967321600

約数和(自身を除く): 1672926280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 239, 284, 355, 478, 568, 710, 956, 1195, 1420, 1907, 1912, 2390, 2840, 3814, 4780, 7628, 9535, 9560, 15256, 16969, 19070, 33938, 38140, 67876, 76280, 84845, 135397, 135752, 169690, 270794, 339380, 455773, 541588, 676985, 678760, 911546, 1083176, 1353970, 1823092, 2278865, 2707940, 3646184, 4557730, 5415880, 9115460, 18230920, 32359883, 64719766, 129439532, 161799415, 258879064, 323598830, 647197660, 1294395320]

約数ペア:

[(1, 1294395320), (2, 647197660), (4, 323598830), (5, 258879064), (8, 161799415), (10, 129439532), (20, 64719766), (40, 32359883), (71, 18230920), (142, 9115460), (239, 5415880), (284, 4557730), (355, 3646184), (478, 2707940), (568, 2278865), (710, 1823092), (956, 1353970), (1195, 1083176), (1420, 911546), (1907, 678760), (1912, 676985), (2390, 541588), (2840, 455773), (3814, 339380), (4780, 270794), (7628, 169690), (9535, 135752), (9560, 135397), (15256, 84845), (16969, 76280), (19070, 67876), (33938, 38140)]