20578962820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1341523}}^1$

素因数の和:1341604

約数の個数: 48

約数和(自身を含む): 47328966720

約数和(自身を除く): 26750003900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 15340, 1341523, 2683046, 5366092, 6707615, 13415230, 17439799, 26830460, 34879598, 69759196, 79149857, 87198995, 158299714, 174397990, 316599428, 348795980, 395749285, 791498570, 1028948141, 1582997140, 2057896282, 4115792564, 5144740705, 10289481410, 20578962820]

約数ペア:

[(1, 20578962820), (2, 10289481410), (4, 5144740705), (5, 4115792564), (10, 2057896282), (13, 1582997140), (20, 1028948141), (26, 791498570), (52, 395749285), (59, 348795980), (65, 316599428), (118, 174397990), (130, 158299714), (236, 87198995), (260, 79149857), (295, 69759196), (590, 34879598), (767, 26830460), (1180, 17439799), (1534, 13415230), (3068, 6707615), (3835, 5366092), (7670, 2683046), (15340, 1341523)]