812964100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{773}}^1\times {\mathrm{809}}^1$

素因数の和:1609

約数の個数: 72

約数和(自身を含む): 1904643720

約数和(自身を除く): 1091679620

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 773, 809, 1300, 1546, 1618, 3092, 3236, 3865, 4045, 7730, 8090, 10049, 10517, 15460, 16180, 19325, 20098, 20225, 21034, 38650, 40196, 40450, 42068, 50245, 52585, 77300, 80900, 100490, 105170, 200980, 210340, 251225, 262925, 502450, 525850, 625357, 1004900, 1051700, 1250714, 2501428, 3126785, 6253570, 8129641, 12507140, 15633925, 16259282, 31267850, 32518564, 40648205, 62535700, 81296410, 162592820, 203241025, 406482050, 812964100]

約数ペア:

[(1, 812964100), (2, 406482050), (4, 203241025), (5, 162592820), (10, 81296410), (13, 62535700), (20, 40648205), (25, 32518564), (26, 31267850), (50, 16259282), (52, 15633925), (65, 12507140), (100, 8129641), (130, 6253570), (260, 3126785), (325, 2501428), (650, 1250714), (773, 1051700), (809, 1004900), (1300, 625357), (1546, 525850), (1618, 502450), (3092, 262925), (3236, 251225), (3865, 210340), (4045, 200980), (7730, 105170), (8090, 100490), (10049, 80900), (10517, 77300), (15460, 52585), (16180, 50245), (19325, 42068), (20098, 40450), (20225, 40196), (21034, 38650)]