11421640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 27141120

約数和(自身を除く): 15719480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 61, 62, 122, 124, 151, 155, 244, 248, 302, 305, 310, 488, 604, 610, 620, 755, 1208, 1220, 1240, 1510, 1891, 2440, 3020, 3782, 4681, 6040, 7564, 9211, 9362, 9455, 15128, 18422, 18724, 18910, 23405, 36844, 37448, 37820, 46055, 46810, 73688, 75640, 92110, 93620, 184220, 187240, 285541, 368440, 571082, 1142164, 1427705, 2284328, 2855410, 5710820, 11421640]

約数ペア:

[(1, 11421640), (2, 5710820), (4, 2855410), (5, 2284328), (8, 1427705), (10, 1142164), (20, 571082), (31, 368440), (40, 285541), (61, 187240), (62, 184220), (122, 93620), (124, 92110), (151, 75640), (155, 73688), (244, 46810), (248, 46055), (302, 37820), (305, 37448), (310, 36844), (488, 23405), (604, 18910), (610, 18724), (620, 18422), (755, 15128), (1208, 9455), (1220, 9362), (1240, 9211), (1510, 7564), (1891, 6040), (2440, 4681), (3020, 3782)]