28395280

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{181}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 69464304

約数和(自身を除く): 41069024

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 53, 74, 80, 106, 148, 181, 185, 212, 265, 296, 362, 370, 424, 530, 592, 724, 740, 848, 905, 1060, 1448, 1480, 1810, 1961, 2120, 2896, 2960, 3620, 3922, 4240, 6697, 7240, 7844, 9593, 9805, 13394, 14480, 15688, 19186, 19610, 26788, 31376, 33485, 38372, 39220, 47965, 53576, 66970, 76744, 78440, 95930, 107152, 133940, 153488, 156880, 191860, 267880, 354941, 383720, 535760, 709882, 767440, 1419764, 1774705, 2839528, 3549410, 5679056, 7098820, 14197640, 28395280]

約数ペア:

[(1, 28395280), (2, 14197640), (4, 7098820), (5, 5679056), (8, 3549410), (10, 2839528), (16, 1774705), (20, 1419764), (37, 767440), (40, 709882), (53, 535760), (74, 383720), (80, 354941), (106, 267880), (148, 191860), (181, 156880), (185, 153488), (212, 133940), (265, 107152), (296, 95930), (362, 78440), (370, 76744), (424, 66970), (530, 53576), (592, 47965), (724, 39220), (740, 38372), (848, 33485), (905, 31376), (1060, 26788), (1448, 19610), (1480, 19186), (1810, 15688), (1961, 14480), (2120, 13394), (2896, 9805), (2960, 9593), (3620, 7844), (3922, 7240), (4240, 6697)]