20477730

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{577}}^1$

素因数の和:620

約数の個数: 96

約数和(自身を含む): 60925824

約数和(自身を除く): 40448094

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 130, 169, 182, 195, 210, 273, 338, 390, 455, 507, 546, 577, 845, 910, 1014, 1154, 1183, 1365, 1690, 1731, 2366, 2535, 2730, 2885, 3462, 3549, 4039, 5070, 5770, 5915, 7098, 7501, 8078, 8655, 11830, 12117, 15002, 17310, 17745, 20195, 22503, 24234, 35490, 37505, 40390, 45006, 52507, 60585, 75010, 97513, 105014, 112515, 121170, 157521, 195026, 225030, 262535, 292539, 315042, 487565, 525070, 585078, 682591, 787605, 975130, 1365182, 1462695, 1575210, 2047773, 2925390, 3412955, 4095546, 6825910, 10238865, 20477730]

約数ペア:

[(1, 20477730), (2, 10238865), (3, 6825910), (5, 4095546), (6, 3412955), (7, 2925390), (10, 2047773), (13, 1575210), (14, 1462695), (15, 1365182), (21, 975130), (26, 787605), (30, 682591), (35, 585078), (39, 525070), (42, 487565), (65, 315042), (70, 292539), (78, 262535), (91, 225030), (105, 195026), (130, 157521), (169, 121170), (182, 112515), (195, 105014), (210, 97513), (273, 75010), (338, 60585), (390, 52507), (455, 45006), (507, 40390), (546, 37505), (577, 35490), (845, 24234), (910, 22503), (1014, 20195), (1154, 17745), (1183, 17310), (1365, 15002), (1690, 12117), (1731, 11830), (2366, 8655), (2535, 8078), (2730, 7501), (2885, 7098), (3462, 5915), (3549, 5770), (4039, 5070)]