20690040

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24631}}^1$

素因数の和:24652

約数の個数: 64

約数和(自身を含む): 70940160

約数和(自身を除く): 50250120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24631, 49262, 73893, 98524, 123155, 147786, 172417, 197048, 246310, 295572, 344834, 369465, 492620, 517251, 591144, 689668, 738930, 862085, 985240, 1034502, 1379336, 1477860, 1724170, 2069004, 2586255, 2955720, 3448340, 4138008, 5172510, 6896680, 10345020, 20690040]

約数ペア:

[(1, 20690040), (2, 10345020), (3, 6896680), (4, 5172510), (5, 4138008), (6, 3448340), (7, 2955720), (8, 2586255), (10, 2069004), (12, 1724170), (14, 1477860), (15, 1379336), (20, 1034502), (21, 985240), (24, 862085), (28, 738930), (30, 689668), (35, 591144), (40, 517251), (42, 492620), (56, 369465), (60, 344834), (70, 295572), (84, 246310), (105, 197048), (120, 172417), (140, 147786), (168, 123155), (210, 98524), (280, 73893), (420, 49262), (840, 24631)]