31515040

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3229}}^1$

素因数の和:3305

約数の個数: 48

約数和(自身を含む): 75698280

約数和(自身を除く): 44183240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 3229, 4880, 6458, 9760, 12916, 16145, 25832, 32290, 51664, 64580, 103328, 129160, 196969, 258320, 393938, 516640, 787876, 984845, 1575752, 1969690, 3151504, 3939380, 6303008, 7878760, 15757520, 31515040]

約数ペア:

[(1, 31515040), (2, 15757520), (4, 7878760), (5, 6303008), (8, 3939380), (10, 3151504), (16, 1969690), (20, 1575752), (32, 984845), (40, 787876), (61, 516640), (80, 393938), (122, 258320), (160, 196969), (244, 129160), (305, 103328), (488, 64580), (610, 51664), (976, 32290), (1220, 25832), (1952, 16145), (2440, 12916), (3229, 9760), (4880, 6458)]