281122920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20023}}^1$

素因数の和:20056

約数の個数: 128

約数和(自身を含む): 1009209600

約数和(自身を除く): 728086680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 7020, 14040, 20023, 40046, 60069, 80092, 100115, 120138, 160184, 180207, 200230, 240276, 260299, 300345, 360414, 400460, 480552, 520598, 540621, 600690, 720828, 780897, 800920, 901035, 1041196, 1081242, 1201380, 1301495, 1441656, 1561794, 1802070, 2082392, 2162484, 2342691, 2402760, 2602990, 2703105, 3123588, 3604140, 3904485, 4324968, 4685382, 5205980, 5406210, 6247176, 7028073, 7208280, 7808970, 9370764, 10411960, 10812420, 11713455, 14056146, 15617940, 18741528, 21624840, 23426910, 28112292, 31235880, 35140365, 46853820, 56224584, 70280730, 93707640, 140561460, 281122920]

約数ペア:

[(1, 281122920), (2, 140561460), (3, 93707640), (4, 70280730), (5, 56224584), (6, 46853820), (8, 35140365), (9, 31235880), (10, 28112292), (12, 23426910), (13, 21624840), (15, 18741528), (18, 15617940), (20, 14056146), (24, 11713455), (26, 10812420), (27, 10411960), (30, 9370764), (36, 7808970), (39, 7208280), (40, 7028073), (45, 6247176), (52, 5406210), (54, 5205980), (60, 4685382), (65, 4324968), (72, 3904485), (78, 3604140), (90, 3123588), (104, 2703105), (108, 2602990), (117, 2402760), (120, 2342691), (130, 2162484), (135, 2082392), (156, 1802070), (180, 1561794), (195, 1441656), (216, 1301495), (234, 1201380), (260, 1081242), (270, 1041196), (312, 901035), (351, 800920), (360, 780897), (390, 720828), (468, 600690), (520, 540621), (540, 520598), (585, 480552), (702, 400460), (780, 360414), (936, 300345), (1080, 260299), (1170, 240276), (1404, 200230), (1560, 180207), (1755, 160184), (2340, 120138), (2808, 100115), (3510, 80092), (4680, 60069), (7020, 40046), (14040, 20023)]