64235440

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13163}}^1$

素因数の和:13237

約数の個数: 40

約数和(自身を含む): 151807248

約数和(自身を除く): 87571808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13163, 26326, 52652, 65815, 105304, 131630, 210608, 263260, 526520, 802943, 1053040, 1605886, 3211772, 4014715, 6423544, 8029430, 12847088, 16058860, 32117720, 64235440]

約数ペア:

[(1, 64235440), (2, 32117720), (4, 16058860), (5, 12847088), (8, 8029430), (10, 6423544), (16, 4014715), (20, 3211772), (40, 1605886), (61, 1053040), (80, 802943), (122, 526520), (244, 263260), (305, 210608), (488, 131630), (610, 105304), (976, 65815), (1220, 52652), (2440, 26326), (4880, 13163)]