320415280

素因数分解:

$2^4\times 5^1\times {\mathrm{569}}^1\times {\mathrm{7039}}^1$

素因数の和:7621

約数の個数: 40

約数和(自身を含む): 746380800

約数和(自身を除く): 425965520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 569, 1138, 2276, 2845, 4552, 5690, 7039, 9104, 11380, 14078, 22760, 28156, 35195, 45520, 56312, 70390, 112624, 140780, 281560, 563120, 4005191, 8010382, 16020764, 20025955, 32041528, 40051910, 64083056, 80103820, 160207640, 320415280]

約数ペア:

[(1, 320415280), (2, 160207640), (4, 80103820), (5, 64083056), (8, 40051910), (10, 32041528), (16, 20025955), (20, 16020764), (40, 8010382), (80, 4005191), (569, 563120), (1138, 281560), (2276, 140780), (2845, 112624), (4552, 70390), (5690, 56312), (7039, 45520), (9104, 35195), (11380, 28156), (14078, 22760)]