315590860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{4723}}^1$

素因数の和:5002

約数の個数: 48

約数和(自身を含む): 716649696

約数和(自身を除く): 401058836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 257, 260, 514, 1028, 1285, 2570, 3341, 4723, 5140, 6682, 9446, 13364, 16705, 18892, 23615, 33410, 47230, 61399, 66820, 94460, 122798, 245596, 306995, 613990, 1213811, 1227980, 2427622, 4855244, 6069055, 12138110, 15779543, 24276220, 31559086, 63118172, 78897715, 157795430, 315590860]

約数ペア:

[(1, 315590860), (2, 157795430), (4, 78897715), (5, 63118172), (10, 31559086), (13, 24276220), (20, 15779543), (26, 12138110), (52, 6069055), (65, 4855244), (130, 2427622), (257, 1227980), (260, 1213811), (514, 613990), (1028, 306995), (1285, 245596), (2570, 122798), (3341, 94460), (4723, 66820), (5140, 61399), (6682, 47230), (9446, 33410), (13364, 23615), (16705, 18892)]