78749775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:170

約数の個数: 108

約数和(自身を含む): 162247800

約数和(自身を除く): 83498025

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 109, 117, 169, 171, 195, 225, 247, 285, 325, 327, 475, 507, 545, 585, 741, 845, 855, 975, 981, 1235, 1417, 1425, 1521, 1635, 2071, 2223, 2535, 2725, 2925, 3211, 3705, 4225, 4251, 4275, 4905, 6175, 6213, 7085, 7605, 8175, 9633, 10355, 11115, 12675, 12753, 16055, 18421, 18525, 18639, 21255, 24525, 26923, 28899, 31065, 35425, 38025, 48165, 51775, 55263, 55575, 63765, 80275, 80769, 92105, 93195, 106275, 134615, 144495, 155325, 165789, 240825, 242307, 276315, 318825, 349999, 403845, 460525, 465975, 673075, 722475, 828945, 1049997, 1211535, 1381575, 1749995, 2019225, 3149991, 4144725, 5249985, 6057675, 8749975, 15749955, 26249925, 78749775]

約数ペア:

[(1, 78749775), (3, 26249925), (5, 15749955), (9, 8749975), (13, 6057675), (15, 5249985), (19, 4144725), (25, 3149991), (39, 2019225), (45, 1749995), (57, 1381575), (65, 1211535), (75, 1049997), (95, 828945), (109, 722475), (117, 673075), (169, 465975), (171, 460525), (195, 403845), (225, 349999), (247, 318825), (285, 276315), (325, 242307), (327, 240825), (475, 165789), (507, 155325), (545, 144495), (585, 134615), (741, 106275), (845, 93195), (855, 92105), (975, 80769), (981, 80275), (1235, 63765), (1417, 55575), (1425, 55263), (1521, 51775), (1635, 48165), (2071, 38025), (2223, 35425), (2535, 31065), (2725, 28899), (2925, 26923), (3211, 24525), (3705, 21255), (4225, 18639), (4251, 18525), (4275, 18421), (4905, 16055), (6175, 12753), (6213, 12675), (7085, 11115), (7605, 10355), (8175, 9633)]