20810760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2843}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 63478080

約数和(自身を除く): 42667320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2843, 3660, 5686, 7320, 8529, 11372, 14215, 17058, 22744, 28430, 34116, 42645, 56860, 68232, 85290, 113720, 170580, 173423, 341160, 346846, 520269, 693692, 867115, 1040538, 1387384, 1734230, 2081076, 2601345, 3468460, 4162152, 5202690, 6936920, 10405380, 20810760]

約数ペア:

[(1, 20810760), (2, 10405380), (3, 6936920), (4, 5202690), (5, 4162152), (6, 3468460), (8, 2601345), (10, 2081076), (12, 1734230), (15, 1387384), (20, 1040538), (24, 867115), (30, 693692), (40, 520269), (60, 346846), (61, 341160), (120, 173423), (122, 170580), (183, 113720), (244, 85290), (305, 68232), (366, 56860), (488, 42645), (610, 34116), (732, 28430), (915, 22744), (1220, 17058), (1464, 14215), (1830, 11372), (2440, 8529), (2843, 7320), (3660, 5686)]