20101890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 50440320

約数和(自身を除く): 30338430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 59, 82, 118, 123, 177, 205, 246, 277, 295, 354, 410, 554, 590, 615, 831, 885, 1230, 1385, 1662, 1770, 2419, 2770, 4155, 4838, 7257, 8310, 11357, 12095, 14514, 16343, 22714, 24190, 32686, 34071, 36285, 49029, 56785, 68142, 72570, 81715, 98058, 113570, 163430, 170355, 245145, 340710, 490290, 670063, 1340126, 2010189, 3350315, 4020378, 6700630, 10050945, 20101890]

約数ペア:

[(1, 20101890), (2, 10050945), (3, 6700630), (5, 4020378), (6, 3350315), (10, 2010189), (15, 1340126), (30, 670063), (41, 490290), (59, 340710), (82, 245145), (118, 170355), (123, 163430), (177, 113570), (205, 98058), (246, 81715), (277, 72570), (295, 68142), (354, 56785), (410, 49029), (554, 36285), (590, 34071), (615, 32686), (831, 24190), (885, 22714), (1230, 16343), (1385, 14514), (1662, 12095), (1770, 11357), (2419, 8310), (2770, 7257), (4155, 4838)]