404497405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{353}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 565995024

約数和(自身を除く): 161497619

約数列:

[1, 5, 13, 17, 61, 65, 85, 221, 289, 305, 353, 793, 1037, 1105, 1445, 1765, 3757, 3965, 4589, 5185, 6001, 13481, 17629, 18785, 21533, 22945, 30005, 67405, 78013, 88145, 102017, 107665, 229177, 279929, 366061, 390065, 510085, 1145885, 1326221, 1399645, 1830305, 4758793, 6223037, 6631105, 23793965, 31115185, 80899481, 404497405]

約数ペア:

[(1, 404497405), (5, 80899481), (13, 31115185), (17, 23793965), (61, 6631105), (65, 6223037), (85, 4758793), (221, 1830305), (289, 1399645), (305, 1326221), (353, 1145885), (793, 510085), (1037, 390065), (1105, 366061), (1445, 279929), (1765, 229177), (3757, 107665), (3965, 102017), (4589, 88145), (5185, 78013), (6001, 67405), (13481, 30005), (17629, 22945), (18785, 21533)]