2590460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 6078240

約数和(自身を除く): 3487780

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 323, 340, 380, 401, 646, 802, 1292, 1604, 1615, 2005, 3230, 4010, 6460, 6817, 7619, 8020, 13634, 15238, 27268, 30476, 34085, 38095, 68170, 76190, 129523, 136340, 152380, 259046, 518092, 647615, 1295230, 2590460]

約数ペア:

[(1, 2590460), (2, 1295230), (4, 647615), (5, 518092), (10, 259046), (17, 152380), (19, 136340), (20, 129523), (34, 76190), (38, 68170), (68, 38095), (76, 34085), (85, 30476), (95, 27268), (170, 15238), (190, 13634), (323, 8020), (340, 7619), (380, 6817), (401, 6460), (646, 4010), (802, 3230), (1292, 2005), (1604, 1615)]