1800015

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 3502080

約数和(自身を除く): 1702065

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 79, 93, 105, 147, 155, 217, 237, 245, 395, 465, 553, 651, 735, 1085, 1185, 1519, 1659, 2449, 2765, 3255, 3871, 4557, 7347, 7595, 8295, 11613, 12245, 17143, 19355, 22785, 36735, 51429, 58065, 85715, 120001, 257145, 360003, 600005, 1800015]

約数ペア:

[(1, 1800015), (3, 600005), (5, 360003), (7, 257145), (15, 120001), (21, 85715), (31, 58065), (35, 51429), (49, 36735), (79, 22785), (93, 19355), (105, 17143), (147, 12245), (155, 11613), (217, 8295), (237, 7595), (245, 7347), (395, 4557), (465, 3871), (553, 3255), (651, 2765), (735, 2449), (1085, 1659), (1185, 1519)]