40779440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{347}}^1$

素因数の和:486

約数の個数: 80

約数和(自身を含む): 103305888

約数和(自身を除く): 62526448

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 208, 226, 260, 347, 452, 520, 565, 694, 904, 1040, 1130, 1388, 1469, 1735, 1808, 2260, 2776, 2938, 3470, 4511, 4520, 5552, 5876, 6940, 7345, 9022, 9040, 11752, 13880, 14690, 18044, 22555, 23504, 27760, 29380, 36088, 39211, 45110, 58760, 72176, 78422, 90220, 117520, 156844, 180440, 196055, 313688, 360880, 392110, 509743, 627376, 784220, 1019486, 1568440, 2038972, 2548715, 3136880, 4077944, 5097430, 8155888, 10194860, 20389720, 40779440]

約数ペア:

[(1, 40779440), (2, 20389720), (4, 10194860), (5, 8155888), (8, 5097430), (10, 4077944), (13, 3136880), (16, 2548715), (20, 2038972), (26, 1568440), (40, 1019486), (52, 784220), (65, 627376), (80, 509743), (104, 392110), (113, 360880), (130, 313688), (208, 196055), (226, 180440), (260, 156844), (347, 117520), (452, 90220), (520, 78422), (565, 72176), (694, 58760), (904, 45110), (1040, 39211), (1130, 36088), (1388, 29380), (1469, 27760), (1735, 23504), (1808, 22555), (2260, 18044), (2776, 14690), (2938, 13880), (3470, 11752), (4511, 9040), (4520, 9022), (5552, 7345), (5876, 6940)]