260393920

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:318

約数の個数: 112

約数和(自身を含む): 641469888

約数和(自身を除く): 381075968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 73, 80, 142, 146, 157, 160, 284, 292, 314, 320, 355, 365, 568, 584, 628, 710, 730, 785, 1136, 1168, 1256, 1420, 1460, 1570, 2272, 2336, 2512, 2840, 2920, 3140, 4544, 4672, 5024, 5183, 5680, 5840, 6280, 10048, 10366, 11147, 11360, 11461, 11680, 12560, 20732, 22294, 22720, 22922, 23360, 25120, 25915, 41464, 44588, 45844, 50240, 51830, 55735, 57305, 82928, 89176, 91688, 103660, 111470, 114610, 165856, 178352, 183376, 207320, 222940, 229220, 331712, 356704, 366752, 414640, 445880, 458440, 713408, 733504, 813731, 829280, 891760, 916880, 1627462, 1658560, 1783520, 1833760, 3254924, 3567040, 3667520, 4068655, 6509848, 8137310, 13019696, 16274620, 26039392, 32549240, 52078784, 65098480, 130196960, 260393920]

約数ペア:

[(1, 260393920), (2, 130196960), (4, 65098480), (5, 52078784), (8, 32549240), (10, 26039392), (16, 16274620), (20, 13019696), (32, 8137310), (40, 6509848), (64, 4068655), (71, 3667520), (73, 3567040), (80, 3254924), (142, 1833760), (146, 1783520), (157, 1658560), (160, 1627462), (284, 916880), (292, 891760), (314, 829280), (320, 813731), (355, 733504), (365, 713408), (568, 458440), (584, 445880), (628, 414640), (710, 366752), (730, 356704), (785, 331712), (1136, 229220), (1168, 222940), (1256, 207320), (1420, 183376), (1460, 178352), (1570, 165856), (2272, 114610), (2336, 111470), (2512, 103660), (2840, 91688), (2920, 89176), (3140, 82928), (4544, 57305), (4672, 55735), (5024, 51830), (5183, 50240), (5680, 45844), (5840, 44588), (6280, 41464), (10048, 25915), (10366, 25120), (11147, 23360), (11360, 22922), (11461, 22720), (11680, 22294), (12560, 20732)]