20867850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{587}}^1$

素因数の和:684

約数の個数: 72

約数和(自身を含む): 56871360

約数和(自身を除く): 36003510

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 79, 90, 150, 158, 225, 237, 395, 450, 474, 587, 711, 790, 1174, 1185, 1422, 1761, 1975, 2370, 2935, 3522, 3555, 3950, 5283, 5870, 5925, 7110, 8805, 10566, 11850, 14675, 17610, 17775, 26415, 29350, 35550, 44025, 46373, 52830, 88050, 92746, 132075, 139119, 231865, 264150, 278238, 417357, 463730, 695595, 834714, 1159325, 1391190, 2086785, 2318650, 3477975, 4173570, 6955950, 10433925, 20867850]

約数ペア:

[(1, 20867850), (2, 10433925), (3, 6955950), (5, 4173570), (6, 3477975), (9, 2318650), (10, 2086785), (15, 1391190), (18, 1159325), (25, 834714), (30, 695595), (45, 463730), (50, 417357), (75, 278238), (79, 264150), (90, 231865), (150, 139119), (158, 132075), (225, 92746), (237, 88050), (395, 52830), (450, 46373), (474, 44025), (587, 35550), (711, 29350), (790, 26415), (1174, 17775), (1185, 17610), (1422, 14675), (1761, 11850), (1975, 10566), (2370, 8805), (2935, 7110), (3522, 5925), (3555, 5870), (3950, 5283)]