15211875

素因数分解:

$3^1\times 5^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:110

約数の個数: 80

約数和(自身を含む): 30990080

約数和(自身を除く): 15778205

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 61, 75, 95, 105, 125, 133, 175, 183, 285, 305, 375, 399, 427, 475, 525, 625, 665, 875, 915, 1159, 1281, 1425, 1525, 1875, 1995, 2135, 2375, 2625, 3325, 3477, 4375, 4575, 5795, 6405, 7125, 7625, 8113, 9975, 10675, 11875, 13125, 16625, 17385, 22875, 24339, 28975, 32025, 35625, 38125, 40565, 49875, 53375, 83125, 86925, 114375, 121695, 144875, 160125, 202825, 249375, 266875, 434625, 608475, 724375, 800625, 1014125, 2173125, 3042375, 5070625, 15211875]

約数ペア:

[(1, 15211875), (3, 5070625), (5, 3042375), (7, 2173125), (15, 1014125), (19, 800625), (21, 724375), (25, 608475), (35, 434625), (57, 266875), (61, 249375), (75, 202825), (95, 160125), (105, 144875), (125, 121695), (133, 114375), (175, 86925), (183, 83125), (285, 53375), (305, 49875), (375, 40565), (399, 38125), (427, 35625), (475, 32025), (525, 28975), (625, 24339), (665, 22875), (875, 17385), (915, 16625), (1159, 13125), (1281, 11875), (1425, 10675), (1525, 9975), (1875, 8113), (1995, 7625), (2135, 7125), (2375, 6405), (2625, 5795), (3325, 4575), (3477, 4375)]