19802484

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:190

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 40737996

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 19, 26, 34, 36, 38, 39, 51, 52, 57, 68, 76, 78, 102, 114, 117, 131, 153, 156, 171, 204, 221, 228, 234, 247, 262, 306, 323, 342, 393, 442, 468, 494, 524, 612, 646, 663, 684, 741, 786, 884, 969, 988, 1179, 1292, 1326, 1482, 1572, 1703, 1938, 1989, 2223, 2227, 2358, 2489, 2652, 2907, 2964, 3406, 3876, 3978, 4199, 4446, 4454, 4716, 4978, 5109, 5814, 6681, 6812, 7467, 7956, 8398, 8892, 8908, 9956, 10218, 11628, 12597, 13362, 14934, 15327, 16796, 20043, 20436, 22401, 25194, 26724, 28951, 29868, 30654, 32357, 37791, 40086, 42313, 44802, 50388, 57902, 61308, 64714, 75582, 80172, 84626, 86853, 89604, 97071, 115804, 126939, 129428, 151164, 169252, 173706, 194142, 253878, 260559, 291213, 347412, 380817, 388284, 507756, 521118, 550069, 582426, 761634, 1042236, 1100138, 1164852, 1523268, 1650207, 2200276, 3300414, 4950621, 6600828, 9901242, 19802484]

約数ペア:

[(1, 19802484), (2, 9901242), (3, 6600828), (4, 4950621), (6, 3300414), (9, 2200276), (12, 1650207), (13, 1523268), (17, 1164852), (18, 1100138), (19, 1042236), (26, 761634), (34, 582426), (36, 550069), (38, 521118), (39, 507756), (51, 388284), (52, 380817), (57, 347412), (68, 291213), (76, 260559), (78, 253878), (102, 194142), (114, 173706), (117, 169252), (131, 151164), (153, 129428), (156, 126939), (171, 115804), (204, 97071), (221, 89604), (228, 86853), (234, 84626), (247, 80172), (262, 75582), (306, 64714), (323, 61308), (342, 57902), (393, 50388), (442, 44802), (468, 42313), (494, 40086), (524, 37791), (612, 32357), (646, 30654), (663, 29868), (684, 28951), (741, 26724), (786, 25194), (884, 22401), (969, 20436), (988, 20043), (1179, 16796), (1292, 15327), (1326, 14934), (1482, 13362), (1572, 12597), (1703, 11628), (1938, 10218), (1989, 9956), (2223, 8908), (2227, 8892), (2358, 8398), (2489, 7956), (2652, 7467), (2907, 6812), (2964, 6681), (3406, 5814), (3876, 5109), (3978, 4978), (4199, 4716), (4446, 4454)]