19828900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2179}}^1$

素因数の和:2213

約数の個数: 72

約数和(自身を含む): 52982720

約数和(自身を除く): 33153820

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1820, 2179, 2275, 4358, 4550, 8716, 9100, 10895, 15253, 21790, 28327, 30506, 43580, 54475, 56654, 61012, 76265, 108950, 113308, 141635, 152530, 198289, 217900, 283270, 305060, 381325, 396578, 566540, 708175, 762650, 793156, 991445, 1416350, 1525300, 1982890, 2832700, 3965780, 4957225, 9914450, 19828900]

約数ペア:

[(1, 19828900), (2, 9914450), (4, 4957225), (5, 3965780), (7, 2832700), (10, 1982890), (13, 1525300), (14, 1416350), (20, 991445), (25, 793156), (26, 762650), (28, 708175), (35, 566540), (50, 396578), (52, 381325), (65, 305060), (70, 283270), (91, 217900), (100, 198289), (130, 152530), (140, 141635), (175, 113308), (182, 108950), (260, 76265), (325, 61012), (350, 56654), (364, 54475), (455, 43580), (650, 30506), (700, 28327), (910, 21790), (1300, 15253), (1820, 10895), (2179, 9100), (2275, 8716), (4358, 4550)]