19140275

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 48

約数和(自身を含む): 30259968

約数和(自身を除く): 11119693

約数列:

[1, 5, 7, 11, 25, 35, 55, 61, 77, 163, 175, 275, 305, 385, 427, 671, 815, 1141, 1525, 1793, 1925, 2135, 3355, 4075, 4697, 5705, 8965, 9943, 10675, 12551, 16775, 23485, 28525, 44825, 49715, 62755, 69601, 109373, 117425, 248575, 313775, 348005, 546865, 765611, 1740025, 2734325, 3828055, 19140275]

約数ペア:

[(1, 19140275), (5, 3828055), (7, 2734325), (11, 1740025), (25, 765611), (35, 546865), (55, 348005), (61, 313775), (77, 248575), (163, 117425), (175, 109373), (275, 69601), (305, 62755), (385, 49715), (427, 44825), (671, 28525), (815, 23485), (1141, 16775), (1525, 12551), (1793, 10675), (1925, 9943), (2135, 8965), (3355, 5705), (4075, 4697)]