18272175

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 32378880

約数和(自身を除く): 14106705

約数列:

[1, 3, 5, 15, 25, 29, 31, 75, 87, 93, 145, 155, 271, 435, 465, 725, 775, 813, 899, 1355, 2175, 2325, 2697, 4065, 4495, 6775, 7859, 8401, 13485, 20325, 22475, 23577, 25203, 39295, 42005, 67425, 117885, 126015, 196475, 210025, 243629, 589425, 630075, 730887, 1218145, 3654435, 6090725, 18272175]

約数ペア:

[(1, 18272175), (3, 6090725), (5, 3654435), (15, 1218145), (25, 730887), (29, 630075), (31, 589425), (75, 243629), (87, 210025), (93, 196475), (145, 126015), (155, 117885), (271, 67425), (435, 42005), (465, 39295), (725, 25203), (775, 23577), (813, 22475), (899, 20325), (1355, 13485), (2175, 8401), (2325, 7859), (2697, 6775), (4065, 4495)]