28056700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{269}}^1$

素因数の和:439

約数の個数: 72

約数和(自身を含む): 70308000

約数和(自身を除く): 42251300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 149, 175, 269, 298, 350, 538, 596, 700, 745, 1043, 1076, 1345, 1490, 1883, 2086, 2690, 2980, 3725, 3766, 4172, 5215, 5380, 6725, 7450, 7532, 9415, 10430, 13450, 14900, 18830, 20860, 26075, 26900, 37660, 40081, 47075, 52150, 80162, 94150, 104300, 160324, 188300, 200405, 280567, 400810, 561134, 801620, 1002025, 1122268, 1402835, 2004050, 2805670, 4008100, 5611340, 7014175, 14028350, 28056700]

約数ペア:

[(1, 28056700), (2, 14028350), (4, 7014175), (5, 5611340), (7, 4008100), (10, 2805670), (14, 2004050), (20, 1402835), (25, 1122268), (28, 1002025), (35, 801620), (50, 561134), (70, 400810), (100, 280567), (140, 200405), (149, 188300), (175, 160324), (269, 104300), (298, 94150), (350, 80162), (538, 52150), (596, 47075), (700, 40081), (745, 37660), (1043, 26900), (1076, 26075), (1345, 20860), (1490, 18830), (1883, 14900), (2086, 13450), (2690, 10430), (2980, 9415), (3725, 7532), (3766, 7450), (4172, 6725), (5215, 5380)]