19970120128

素因数分解:

$2^6\times 7^2\times {\mathrm{29}}^1\times {\mathrm{219587}}^1$

素因数の和:219642

約数の個数: 84

約数和(自身を含む): 47687925960

約数和(自身を除く): 27717805832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 49, 56, 58, 64, 98, 112, 116, 196, 203, 224, 232, 392, 406, 448, 464, 784, 812, 928, 1421, 1568, 1624, 1856, 2842, 3136, 3248, 5684, 6496, 11368, 12992, 22736, 45472, 90944, 219587, 439174, 878348, 1537109, 1756696, 3074218, 3513392, 6148436, 6368023, 7026784, 10759763, 12296872, 12736046, 14053568, 21519526, 24593744, 25472092, 43039052, 44576161, 49187488, 50944184, 86078104, 89152322, 98374976, 101888368, 172156208, 178304644, 203776736, 312033127, 344312416, 356609288, 407553472, 624066254, 688624832, 713218576, 1248132508, 1426437152, 2496265016, 2852874304, 4992530032, 9985060064, 19970120128]

約数ペア:

[(1, 19970120128), (2, 9985060064), (4, 4992530032), (7, 2852874304), (8, 2496265016), (14, 1426437152), (16, 1248132508), (28, 713218576), (29, 688624832), (32, 624066254), (49, 407553472), (56, 356609288), (58, 344312416), (64, 312033127), (98, 203776736), (112, 178304644), (116, 172156208), (196, 101888368), (203, 98374976), (224, 89152322), (232, 86078104), (392, 50944184), (406, 49187488), (448, 44576161), (464, 43039052), (784, 25472092), (812, 24593744), (928, 21519526), (1421, 14053568), (1568, 12736046), (1624, 12296872), (1856, 10759763), (2842, 7026784), (3136, 6368023), (3248, 6148436), (5684, 3513392), (6496, 3074218), (11368, 1756696), (12992, 1537109), (22736, 878348), (45472, 439174), (90944, 219587)]