817365640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{521}}^1$

素因数の和:983

約数の個数: 128

約数和(自身を含む): 2273080320

約数和(自身を除く): 1455714680

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 431, 455, 520, 521, 728, 862, 910, 1042, 1724, 1820, 2084, 2155, 2605, 3017, 3448, 3640, 3647, 4168, 4310, 5210, 5603, 6034, 6773, 7294, 8620, 10420, 11206, 12068, 13546, 14588, 15085, 17240, 18235, 20840, 22412, 24136, 27092, 28015, 29176, 30170, 33865, 36470, 39221, 44824, 47411, 54184, 56030, 60340, 67730, 72940, 78442, 94822, 112060, 120680, 135460, 145880, 156884, 189644, 196105, 224120, 224551, 237055, 270920, 313768, 379288, 392210, 449102, 474110, 784420, 898204, 948220, 1122755, 1568840, 1571857, 1796408, 1896440, 2245510, 2919163, 3143714, 4491020, 5838326, 6287428, 7859285, 8982040, 11676652, 12574856, 14595815, 15718570, 20434141, 23353304, 29191630, 31437140, 40868282, 58383260, 62874280, 81736564, 102170705, 116766520, 163473128, 204341410, 408682820, 817365640]

約数ペア:

[(1, 817365640), (2, 408682820), (4, 204341410), (5, 163473128), (7, 116766520), (8, 102170705), (10, 81736564), (13, 62874280), (14, 58383260), (20, 40868282), (26, 31437140), (28, 29191630), (35, 23353304), (40, 20434141), (52, 15718570), (56, 14595815), (65, 12574856), (70, 11676652), (91, 8982040), (104, 7859285), (130, 6287428), (140, 5838326), (182, 4491020), (260, 3143714), (280, 2919163), (364, 2245510), (431, 1896440), (455, 1796408), (520, 1571857), (521, 1568840), (728, 1122755), (862, 948220), (910, 898204), (1042, 784420), (1724, 474110), (1820, 449102), (2084, 392210), (2155, 379288), (2605, 313768), (3017, 270920), (3448, 237055), (3640, 224551), (3647, 224120), (4168, 196105), (4310, 189644), (5210, 156884), (5603, 145880), (6034, 135460), (6773, 120680), (7294, 112060), (8620, 94822), (10420, 78442), (11206, 72940), (12068, 67730), (13546, 60340), (14588, 56030), (15085, 54184), (17240, 47411), (18235, 44824), (20840, 39221), (22412, 36470), (24136, 33865), (27092, 30170), (28015, 29176)]