31281180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1049}}^1$

素因数の和:1139

約数の個数: 96

約数和(自身を含む): 101606400

約数和(自身を除く): 70325220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 71, 84, 105, 140, 142, 210, 213, 284, 355, 420, 426, 497, 710, 852, 994, 1049, 1065, 1420, 1491, 1988, 2098, 2130, 2485, 2982, 3147, 4196, 4260, 4970, 5245, 5964, 6294, 7343, 7455, 9940, 10490, 12588, 14686, 14910, 15735, 20980, 22029, 29372, 29820, 31470, 36715, 44058, 62940, 73430, 74479, 88116, 110145, 146860, 148958, 220290, 223437, 297916, 372395, 440580, 446874, 521353, 744790, 893748, 1042706, 1117185, 1489580, 1564059, 2085412, 2234370, 2606765, 3128118, 4468740, 5213530, 6256236, 7820295, 10427060, 15640590, 31281180]

約数ペア:

[(1, 31281180), (2, 15640590), (3, 10427060), (4, 7820295), (5, 6256236), (6, 5213530), (7, 4468740), (10, 3128118), (12, 2606765), (14, 2234370), (15, 2085412), (20, 1564059), (21, 1489580), (28, 1117185), (30, 1042706), (35, 893748), (42, 744790), (60, 521353), (70, 446874), (71, 440580), (84, 372395), (105, 297916), (140, 223437), (142, 220290), (210, 148958), (213, 146860), (284, 110145), (355, 88116), (420, 74479), (426, 73430), (497, 62940), (710, 44058), (852, 36715), (994, 31470), (1049, 29820), (1065, 29372), (1420, 22029), (1491, 20980), (1988, 15735), (2098, 14910), (2130, 14686), (2485, 12588), (2982, 10490), (3147, 9940), (4196, 7455), (4260, 7343), (4970, 6294), (5245, 5964)]