20388030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:941

約数の個数: 64

約数和(自身を含む): 53621568

約数和(自身を除く): 33233538

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 61, 65, 78, 122, 130, 183, 195, 305, 366, 390, 610, 793, 857, 915, 1586, 1714, 1830, 2379, 2571, 3965, 4285, 4758, 5142, 7930, 8570, 11141, 11895, 12855, 22282, 23790, 25710, 33423, 52277, 55705, 66846, 104554, 111410, 156831, 167115, 261385, 313662, 334230, 522770, 679601, 784155, 1359202, 1568310, 2038803, 3398005, 4077606, 6796010, 10194015, 20388030]

約数ペア:

[(1, 20388030), (2, 10194015), (3, 6796010), (5, 4077606), (6, 3398005), (10, 2038803), (13, 1568310), (15, 1359202), (26, 784155), (30, 679601), (39, 522770), (61, 334230), (65, 313662), (78, 261385), (122, 167115), (130, 156831), (183, 111410), (195, 104554), (305, 66846), (366, 55705), (390, 52277), (610, 33423), (793, 25710), (857, 23790), (915, 22282), (1586, 12855), (1714, 11895), (1830, 11141), (2379, 8570), (2571, 7930), (3965, 5142), (4285, 4758)]