128437660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:263

約数の個数: 96

約数和(自身を含む): 301799232

約数和(自身を除く): 173361572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 73, 101, 130, 134, 146, 202, 260, 268, 292, 335, 365, 404, 505, 670, 730, 871, 949, 1010, 1313, 1340, 1460, 1742, 1898, 2020, 2626, 3484, 3796, 4355, 4745, 4891, 5252, 6565, 6767, 7373, 8710, 9490, 9782, 13130, 13534, 14746, 17420, 18980, 19564, 24455, 26260, 27068, 29492, 33835, 36865, 48910, 63583, 67670, 73730, 87971, 95849, 97820, 127166, 135340, 147460, 175942, 191698, 254332, 317915, 351884, 383396, 439855, 479245, 493991, 635830, 879710, 958490, 987982, 1271660, 1759420, 1916980, 1975964, 2469955, 4939910, 6421883, 9879820, 12843766, 25687532, 32109415, 64218830, 128437660]

約数ペア:

[(1, 128437660), (2, 64218830), (4, 32109415), (5, 25687532), (10, 12843766), (13, 9879820), (20, 6421883), (26, 4939910), (52, 2469955), (65, 1975964), (67, 1916980), (73, 1759420), (101, 1271660), (130, 987982), (134, 958490), (146, 879710), (202, 635830), (260, 493991), (268, 479245), (292, 439855), (335, 383396), (365, 351884), (404, 317915), (505, 254332), (670, 191698), (730, 175942), (871, 147460), (949, 135340), (1010, 127166), (1313, 97820), (1340, 95849), (1460, 87971), (1742, 73730), (1898, 67670), (2020, 63583), (2626, 48910), (3484, 36865), (3796, 33835), (4355, 29492), (4745, 27068), (4891, 26260), (5252, 24455), (6565, 19564), (6767, 18980), (7373, 17420), (8710, 14746), (9490, 13534), (9782, 13130)]