1808432840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{4547}}^1$

素因数の和:4782

約数の個数: 64

約数和(自身を含む): 4161965760

約数和(自身を除く): 2353532920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 163, 244, 305, 326, 488, 610, 652, 815, 1220, 1304, 1630, 2440, 3260, 4547, 6520, 9094, 9943, 18188, 19886, 22735, 36376, 39772, 45470, 49715, 79544, 90940, 99430, 181880, 198860, 277367, 397720, 554734, 741161, 1109468, 1386835, 1482322, 2218936, 2773670, 2964644, 3705805, 5547340, 5929288, 7411610, 11094680, 14823220, 29646440, 45210821, 90421642, 180843284, 226054105, 361686568, 452108210, 904216420, 1808432840]

約数ペア:

[(1, 1808432840), (2, 904216420), (4, 452108210), (5, 361686568), (8, 226054105), (10, 180843284), (20, 90421642), (40, 45210821), (61, 29646440), (122, 14823220), (163, 11094680), (244, 7411610), (305, 5929288), (326, 5547340), (488, 3705805), (610, 2964644), (652, 2773670), (815, 2218936), (1220, 1482322), (1304, 1386835), (1630, 1109468), (2440, 741161), (3260, 554734), (4547, 397720), (6520, 277367), (9094, 198860), (9943, 181880), (18188, 99430), (19886, 90940), (22735, 79544), (36376, 49715), (39772, 45470)]