645486940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{739}}^1$

素因数の和:1139

約数の個数: 96

約数和(自身を含む): 1646991360

約数和(自身を除く): 1001504420

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 367, 476, 595, 734, 739, 1190, 1468, 1478, 1835, 2380, 2569, 2956, 3670, 3695, 5138, 5173, 6239, 7340, 7390, 10276, 10346, 12478, 12563, 12845, 14780, 20692, 24956, 25126, 25690, 25865, 31195, 43673, 50252, 51380, 51730, 62390, 62815, 87346, 87941, 103460, 124780, 125630, 174692, 175882, 218365, 251260, 271213, 351764, 436730, 439705, 542426, 873460, 879410, 1084852, 1356065, 1758820, 1898491, 2712130, 3796982, 4610621, 5424260, 7593964, 9221242, 9492455, 18442484, 18984910, 23053105, 32274347, 37969820, 46106210, 64548694, 92212420, 129097388, 161371735, 322743470, 645486940]

約数ペア:

[(1, 645486940), (2, 322743470), (4, 161371735), (5, 129097388), (7, 92212420), (10, 64548694), (14, 46106210), (17, 37969820), (20, 32274347), (28, 23053105), (34, 18984910), (35, 18442484), (68, 9492455), (70, 9221242), (85, 7593964), (119, 5424260), (140, 4610621), (170, 3796982), (238, 2712130), (340, 1898491), (367, 1758820), (476, 1356065), (595, 1084852), (734, 879410), (739, 873460), (1190, 542426), (1468, 439705), (1478, 436730), (1835, 351764), (2380, 271213), (2569, 251260), (2956, 218365), (3670, 175882), (3695, 174692), (5138, 125630), (5173, 124780), (6239, 103460), (7340, 87941), (7390, 87346), (10276, 62815), (10346, 62390), (12478, 51730), (12563, 51380), (12845, 50252), (14780, 43673), (20692, 31195), (24956, 25865), (25126, 25690)]