1907984988

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{631}}^1$

素因数の和:745

約数の個数: 216

約数和(自身を含む): 6062224896

約数和(自身を除く): 4154239908

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 52, 63, 71, 78, 84, 91, 117, 126, 142, 156, 169, 182, 213, 234, 252, 273, 284, 338, 364, 426, 468, 497, 507, 546, 631, 639, 676, 819, 852, 923, 994, 1014, 1092, 1183, 1262, 1278, 1491, 1521, 1638, 1846, 1893, 1988, 2028, 2366, 2524, 2556, 2769, 2982, 3042, 3276, 3549, 3692, 3786, 4417, 4473, 4732, 5538, 5679, 5964, 6084, 6461, 7098, 7572, 8203, 8307, 8834, 8946, 10647, 11076, 11358, 11999, 12922, 13251, 14196, 16406, 16614, 17668, 17892, 19383, 21294, 22716, 23998, 24609, 25844, 26502, 32812, 33228, 35997, 38766, 39753, 42588, 44801, 47996, 49218, 53004, 57421, 58149, 71994, 73827, 77532, 79506, 83993, 89602, 98436, 106639, 107991, 114842, 116298, 134403, 143988, 147654, 159012, 167986, 172263, 179204, 213278, 215982, 229684, 232596, 251979, 268806, 295308, 313607, 319917, 335972, 344526, 403209, 426556, 431964, 503958, 516789, 537612, 582413, 627214, 639834, 689052, 746473, 755937, 806418, 940821, 959751, 1007916, 1033578, 1164826, 1254428, 1279668, 1492946, 1511874, 1612836, 1747239, 1881642, 1919502, 2067156, 2239419, 2329652, 2822463, 2985892, 3023748, 3494478, 3763284, 3839004, 4076891, 4478838, 5241717, 5644926, 6718257, 6988956, 7571369, 8153782, 8957676, 10483434, 11289852, 12230673, 13436514, 15142738, 16307564, 20966868, 22714107, 24461346, 26873028, 30285476, 36692019, 45428214, 48922692, 52999583, 68142321, 73384038, 90856428, 105999166, 136284642, 146768076, 158998749, 211998332, 272569284, 317997498, 476996247, 635994996, 953992494, 1907984988]

約数ペア:

[(1, 1907984988), (2, 953992494), (3, 635994996), (4, 476996247), (6, 317997498), (7, 272569284), (9, 211998332), (12, 158998749), (13, 146768076), (14, 136284642), (18, 105999166), (21, 90856428), (26, 73384038), (28, 68142321), (36, 52999583), (39, 48922692), (42, 45428214), (52, 36692019), (63, 30285476), (71, 26873028), (78, 24461346), (84, 22714107), (91, 20966868), (117, 16307564), (126, 15142738), (142, 13436514), (156, 12230673), (169, 11289852), (182, 10483434), (213, 8957676), (234, 8153782), (252, 7571369), (273, 6988956), (284, 6718257), (338, 5644926), (364, 5241717), (426, 4478838), (468, 4076891), (497, 3839004), (507, 3763284), (546, 3494478), (631, 3023748), (639, 2985892), (676, 2822463), (819, 2329652), (852, 2239419), (923, 2067156), (994, 1919502), (1014, 1881642), (1092, 1747239), (1183, 1612836), (1262, 1511874), (1278, 1492946), (1491, 1279668), (1521, 1254428), (1638, 1164826), (1846, 1033578), (1893, 1007916), (1988, 959751), (2028, 940821), (2366, 806418), (2524, 755937), (2556, 746473), (2769, 689052), (2982, 639834), (3042, 627214), (3276, 582413), (3549, 537612), (3692, 516789), (3786, 503958), (4417, 431964), (4473, 426556), (4732, 403209), (5538, 344526), (5679, 335972), (5964, 319917), (6084, 313607), (6461, 295308), (7098, 268806), (7572, 251979), (8203, 232596), (8307, 229684), (8834, 215982), (8946, 213278), (10647, 179204), (11076, 172263), (11358, 167986), (11999, 159012), (12922, 147654), (13251, 143988), (14196, 134403), (16406, 116298), (16614, 114842), (17668, 107991), (17892, 106639), (19383, 98436), (21294, 89602), (22716, 83993), (23998, 79506), (24609, 77532), (25844, 73827), (26502, 71994), (32812, 58149), (33228, 57421), (35997, 53004), (38766, 49218), (39753, 47996), (42588, 44801)]