127950020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{257}}^1$

素因数の和:381

約数の個数: 96

約数和(自身を含む): 307915776

約数和(自身を除く): 179965756

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 31, 44, 55, 62, 73, 110, 124, 146, 155, 220, 257, 292, 310, 341, 365, 514, 620, 682, 730, 803, 1028, 1285, 1364, 1460, 1606, 1705, 2263, 2570, 2827, 3212, 3410, 4015, 4526, 5140, 5654, 6820, 7967, 8030, 9052, 11308, 11315, 14135, 15934, 16060, 18761, 22630, 24893, 28270, 31868, 37522, 39835, 45260, 49786, 56540, 75044, 79670, 87637, 93805, 99572, 124465, 159340, 175274, 187610, 206371, 248930, 350548, 375220, 412742, 438185, 497860, 581591, 825484, 876370, 1031855, 1163182, 1752740, 2063710, 2326364, 2907955, 4127420, 5815910, 6397501, 11631820, 12795002, 25590004, 31987505, 63975010, 127950020]

約数ペア:

[(1, 127950020), (2, 63975010), (4, 31987505), (5, 25590004), (10, 12795002), (11, 11631820), (20, 6397501), (22, 5815910), (31, 4127420), (44, 2907955), (55, 2326364), (62, 2063710), (73, 1752740), (110, 1163182), (124, 1031855), (146, 876370), (155, 825484), (220, 581591), (257, 497860), (292, 438185), (310, 412742), (341, 375220), (365, 350548), (514, 248930), (620, 206371), (682, 187610), (730, 175274), (803, 159340), (1028, 124465), (1285, 99572), (1364, 93805), (1460, 87637), (1606, 79670), (1705, 75044), (2263, 56540), (2570, 49786), (2827, 45260), (3212, 39835), (3410, 37522), (4015, 31868), (4526, 28270), (5140, 24893), (5654, 22630), (6820, 18761), (7967, 16060), (8030, 15934), (9052, 14135), (11308, 11315)]