15780180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20231}}^1$

素因数の和:20256

約数の個数: 48

約数和(自身を含む): 47585664

約数和(自身を除く): 31805484

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 20231, 40462, 60693, 80924, 101155, 121386, 202310, 242772, 263003, 303465, 404620, 526006, 606930, 789009, 1052012, 1213860, 1315015, 1578018, 2630030, 3156036, 3945045, 5260060, 7890090, 15780180]

約数ペア:

[(1, 15780180), (2, 7890090), (3, 5260060), (4, 3945045), (5, 3156036), (6, 2630030), (10, 1578018), (12, 1315015), (13, 1213860), (15, 1052012), (20, 789009), (26, 606930), (30, 526006), (39, 404620), (52, 303465), (60, 263003), (65, 242772), (78, 202310), (130, 121386), (156, 101155), (195, 80924), (260, 60693), (390, 40462), (780, 20231)]