215654868

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{257}}^1$

素因数の和:454

約数の個数: 144

約数和(自身を含む): 646865856

約数和(自身を除く): 431210988

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 44, 52, 66, 78, 99, 117, 132, 143, 156, 163, 198, 234, 257, 286, 326, 396, 429, 468, 489, 514, 572, 652, 771, 858, 978, 1028, 1287, 1467, 1542, 1716, 1793, 1956, 2119, 2313, 2574, 2827, 2934, 3084, 3341, 3586, 4238, 4626, 5148, 5379, 5654, 5868, 6357, 6682, 7172, 8476, 8481, 9252, 10023, 10758, 11308, 12714, 13364, 16137, 16962, 19071, 20046, 21516, 23309, 25428, 25443, 30069, 32274, 33924, 36751, 38142, 40092, 41891, 46618, 50886, 60138, 64548, 69927, 73502, 76284, 83782, 93236, 101772, 110253, 120276, 125673, 139854, 147004, 167564, 209781, 220506, 251346, 279708, 330759, 377019, 419562, 441012, 460801, 502692, 544583, 661518, 754038, 839124, 921602, 1089166, 1323036, 1382403, 1508076, 1633749, 1843204, 2178332, 2764806, 3267498, 4147209, 4901247, 5529612, 5990413, 6534996, 8294418, 9802494, 11980826, 16588836, 17971239, 19604988, 23961652, 35942478, 53913717, 71884956, 107827434, 215654868]

約数ペア:

[(1, 215654868), (2, 107827434), (3, 71884956), (4, 53913717), (6, 35942478), (9, 23961652), (11, 19604988), (12, 17971239), (13, 16588836), (18, 11980826), (22, 9802494), (26, 8294418), (33, 6534996), (36, 5990413), (39, 5529612), (44, 4901247), (52, 4147209), (66, 3267498), (78, 2764806), (99, 2178332), (117, 1843204), (132, 1633749), (143, 1508076), (156, 1382403), (163, 1323036), (198, 1089166), (234, 921602), (257, 839124), (286, 754038), (326, 661518), (396, 544583), (429, 502692), (468, 460801), (489, 441012), (514, 419562), (572, 377019), (652, 330759), (771, 279708), (858, 251346), (978, 220506), (1028, 209781), (1287, 167564), (1467, 147004), (1542, 139854), (1716, 125673), (1793, 120276), (1956, 110253), (2119, 101772), (2313, 93236), (2574, 83782), (2827, 76284), (2934, 73502), (3084, 69927), (3341, 64548), (3586, 60138), (4238, 50886), (4626, 46618), (5148, 41891), (5379, 40092), (5654, 38142), (5868, 36751), (6357, 33924), (6682, 32274), (7172, 30069), (8476, 25443), (8481, 25428), (9252, 23309), (10023, 21516), (10758, 20046), (11308, 19071), (12714, 16962), (13364, 16137)]