31408900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:365

約数の個数: 72

約数和(自身を含む): 73189760

約数和(自身を除く): 41780860

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 61, 76, 95, 100, 122, 190, 244, 271, 305, 380, 475, 542, 610, 950, 1084, 1159, 1220, 1355, 1525, 1900, 2318, 2710, 3050, 4636, 5149, 5420, 5795, 6100, 6775, 10298, 11590, 13550, 16531, 20596, 23180, 25745, 27100, 28975, 33062, 51490, 57950, 66124, 82655, 102980, 115900, 128725, 165310, 257450, 314089, 330620, 413275, 514900, 628178, 826550, 1256356, 1570445, 1653100, 3140890, 6281780, 7852225, 15704450, 31408900]

約数ペア:

[(1, 31408900), (2, 15704450), (4, 7852225), (5, 6281780), (10, 3140890), (19, 1653100), (20, 1570445), (25, 1256356), (38, 826550), (50, 628178), (61, 514900), (76, 413275), (95, 330620), (100, 314089), (122, 257450), (190, 165310), (244, 128725), (271, 115900), (305, 102980), (380, 82655), (475, 66124), (542, 57950), (610, 51490), (950, 33062), (1084, 28975), (1159, 27100), (1220, 25745), (1355, 23180), (1525, 20596), (1900, 16531), (2318, 13550), (2710, 11590), (3050, 10298), (4636, 6775), (5149, 6100), (5420, 5795)]