505839920

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{653}}^1$

素因数の和:1110

約数の個数: 80

約数和(自身を含む): 1232010432

約数和(自身を除く): 726170512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 421, 460, 653, 842, 920, 1306, 1684, 1840, 2105, 2612, 3265, 3368, 4210, 5224, 6530, 6736, 8420, 9683, 10448, 13060, 15019, 16840, 19366, 26120, 30038, 33680, 38732, 48415, 52240, 60076, 75095, 77464, 96830, 120152, 150190, 154928, 193660, 240304, 274913, 300380, 387320, 549826, 600760, 774640, 1099652, 1201520, 1374565, 2199304, 2749130, 4398608, 5498260, 6322999, 10996520, 12645998, 21993040, 25291996, 31614995, 50583992, 63229990, 101167984, 126459980, 252919960, 505839920]

約数ペア:

[(1, 505839920), (2, 252919960), (4, 126459980), (5, 101167984), (8, 63229990), (10, 50583992), (16, 31614995), (20, 25291996), (23, 21993040), (40, 12645998), (46, 10996520), (80, 6322999), (92, 5498260), (115, 4398608), (184, 2749130), (230, 2199304), (368, 1374565), (421, 1201520), (460, 1099652), (653, 774640), (842, 600760), (920, 549826), (1306, 387320), (1684, 300380), (1840, 274913), (2105, 240304), (2612, 193660), (3265, 154928), (3368, 150190), (4210, 120152), (5224, 96830), (6530, 77464), (6736, 75095), (8420, 60076), (9683, 52240), (10448, 48415), (13060, 38732), (15019, 33680), (16840, 30038), (19366, 26120)]