28475550

素因数分解:

$2^1\times 3^4\times 5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:192

約数の個数: 120

約数和(自身を含む): 81021600

約数和(自身を除く): 52546050

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 27, 30, 45, 50, 54, 75, 79, 81, 89, 90, 135, 150, 158, 162, 178, 225, 237, 267, 270, 395, 405, 445, 450, 474, 534, 675, 711, 790, 801, 810, 890, 1185, 1335, 1350, 1422, 1602, 1975, 2025, 2133, 2225, 2370, 2403, 2670, 3555, 3950, 4005, 4050, 4266, 4450, 4806, 5925, 6399, 6675, 7031, 7110, 7209, 8010, 10665, 11850, 12015, 12798, 13350, 14062, 14418, 17775, 20025, 21093, 21330, 24030, 31995, 35155, 35550, 36045, 40050, 42186, 53325, 60075, 63279, 63990, 70310, 72090, 105465, 106650, 120150, 126558, 159975, 175775, 180225, 189837, 210930, 316395, 319950, 351550, 360450, 379674, 527325, 569511, 632790, 949185, 1054650, 1139022, 1581975, 1898370, 2847555, 3163950, 4745925, 5695110, 9491850, 14237775, 28475550]

約数ペア:

[(1, 28475550), (2, 14237775), (3, 9491850), (5, 5695110), (6, 4745925), (9, 3163950), (10, 2847555), (15, 1898370), (18, 1581975), (25, 1139022), (27, 1054650), (30, 949185), (45, 632790), (50, 569511), (54, 527325), (75, 379674), (79, 360450), (81, 351550), (89, 319950), (90, 316395), (135, 210930), (150, 189837), (158, 180225), (162, 175775), (178, 159975), (225, 126558), (237, 120150), (267, 106650), (270, 105465), (395, 72090), (405, 70310), (445, 63990), (450, 63279), (474, 60075), (534, 53325), (675, 42186), (711, 40050), (790, 36045), (801, 35550), (810, 35155), (890, 31995), (1185, 24030), (1335, 21330), (1350, 21093), (1422, 20025), (1602, 17775), (1975, 14418), (2025, 14062), (2133, 13350), (2225, 12798), (2370, 12015), (2403, 11850), (2670, 10665), (3555, 8010), (3950, 7209), (4005, 7110), (4050, 7031), (4266, 6675), (4450, 6399), (4806, 5925)]