65728720

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{13469}}^1$

素因数の和:13543

約数の個数: 40

約数和(自身を含む): 155336040

約数和(自身を除く): 89607320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 13469, 26938, 53876, 67345, 107752, 134690, 215504, 269380, 538760, 821609, 1077520, 1643218, 3286436, 4108045, 6572872, 8216090, 13145744, 16432180, 32864360, 65728720]

約数ペア:

[(1, 65728720), (2, 32864360), (4, 16432180), (5, 13145744), (8, 8216090), (10, 6572872), (16, 4108045), (20, 3286436), (40, 1643218), (61, 1077520), (80, 821609), (122, 538760), (244, 269380), (305, 215504), (488, 134690), (610, 107752), (976, 67345), (1220, 53876), (2440, 26938), (4880, 13469)]