81597590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 163296000

約数和(自身を除く): 81698410

約数列:

[1, 2, 5, 10, 19, 29, 38, 58, 59, 95, 118, 145, 190, 251, 290, 295, 502, 551, 590, 1102, 1121, 1255, 1711, 2242, 2510, 2755, 3422, 4769, 5510, 5605, 7279, 8555, 9538, 11210, 14558, 14809, 17110, 23845, 29618, 32509, 36395, 47690, 65018, 72790, 74045, 138301, 148090, 162545, 276602, 281371, 325090, 429461, 562742, 691505, 858922, 1383010, 1406855, 2147305, 2813710, 4294610, 8159759, 16319518, 40798795, 81597590]

約数ペア:

[(1, 81597590), (2, 40798795), (5, 16319518), (10, 8159759), (19, 4294610), (29, 2813710), (38, 2147305), (58, 1406855), (59, 1383010), (95, 858922), (118, 691505), (145, 562742), (190, 429461), (251, 325090), (290, 281371), (295, 276602), (502, 162545), (551, 148090), (590, 138301), (1102, 74045), (1121, 72790), (1255, 65018), (1711, 47690), (2242, 36395), (2510, 32509), (2755, 29618), (3422, 23845), (4769, 17110), (5510, 14809), (5605, 14558), (7279, 11210), (8555, 9538)]