81558880

素因数分解:

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

素因数の和:488

約数の個数: 96

約数和(自身を含む): 209944224

約数和(自身を除く): 128385344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 113, 130, 160, 208, 226, 260, 347, 416, 452, 520, 565, 694, 904, 1040, 1130, 1388, 1469, 1735, 1808, 2080, 2260, 2776, 2938, 3470, 3616, 4511, 4520, 5552, 5876, 6940, 7345, 9022, 9040, 11104, 11752, 13880, 14690, 18044, 18080, 22555, 23504, 27760, 29380, 36088, 39211, 45110, 47008, 55520, 58760, 72176, 78422, 90220, 117520, 144352, 156844, 180440, 196055, 235040, 313688, 360880, 392110, 509743, 627376, 721760, 784220, 1019486, 1254752, 1568440, 2038972, 2548715, 3136880, 4077944, 5097430, 6273760, 8155888, 10194860, 16311776, 20389720, 40779440, 81558880]

約数ペア:

[(1, 81558880), (2, 40779440), (4, 20389720), (5, 16311776), (8, 10194860), (10, 8155888), (13, 6273760), (16, 5097430), (20, 4077944), (26, 3136880), (32, 2548715), (40, 2038972), (52, 1568440), (65, 1254752), (80, 1019486), (104, 784220), (113, 721760), (130, 627376), (160, 509743), (208, 392110), (226, 360880), (260, 313688), (347, 235040), (416, 196055), (452, 180440), (520, 156844), (565, 144352), (694, 117520), (904, 90220), (1040, 78422), (1130, 72176), (1388, 58760), (1469, 55520), (1735, 47008), (1808, 45110), (2080, 39211), (2260, 36088), (2776, 29380), (2938, 27760), (3470, 23504), (3616, 22555), (4511, 18080), (4520, 18044), (5552, 14690), (5876, 13880), (6940, 11752), (7345, 11104), (9022, 9040)]