19995372

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 58705920

約数和(自身を除く): 38710548

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 23, 31, 36, 38, 41, 46, 57, 62, 69, 76, 82, 92, 93, 114, 123, 124, 138, 164, 171, 186, 207, 228, 246, 276, 279, 342, 369, 372, 414, 437, 492, 558, 589, 684, 713, 738, 779, 828, 874, 943, 1116, 1178, 1271, 1311, 1426, 1476, 1558, 1748, 1767, 1886, 2139, 2337, 2356, 2542, 2622, 2829, 2852, 3116, 3534, 3772, 3813, 3933, 4278, 4674, 5084, 5244, 5301, 5658, 6417, 7011, 7068, 7626, 7866, 8487, 8556, 9348, 10602, 11316, 11439, 12834, 13547, 14022, 15252, 15732, 16974, 17917, 21204, 22878, 24149, 25668, 27094, 28044, 29233, 33948, 35834, 40641, 45756, 48298, 53751, 54188, 58466, 71668, 72447, 81282, 87699, 96596, 107502, 116932, 121923, 144894, 161253, 162564, 175398, 215004, 217341, 243846, 263097, 289788, 322506, 350796, 434682, 487692, 526194, 555427, 645012, 869364, 1052388, 1110854, 1666281, 2221708, 3332562, 4998843, 6665124, 9997686, 19995372]

約数ペア:

[(1, 19995372), (2, 9997686), (3, 6665124), (4, 4998843), (6, 3332562), (9, 2221708), (12, 1666281), (18, 1110854), (19, 1052388), (23, 869364), (31, 645012), (36, 555427), (38, 526194), (41, 487692), (46, 434682), (57, 350796), (62, 322506), (69, 289788), (76, 263097), (82, 243846), (92, 217341), (93, 215004), (114, 175398), (123, 162564), (124, 161253), (138, 144894), (164, 121923), (171, 116932), (186, 107502), (207, 96596), (228, 87699), (246, 81282), (276, 72447), (279, 71668), (342, 58466), (369, 54188), (372, 53751), (414, 48298), (437, 45756), (492, 40641), (558, 35834), (589, 33948), (684, 29233), (713, 28044), (738, 27094), (779, 25668), (828, 24149), (874, 22878), (943, 21204), (1116, 17917), (1178, 16974), (1271, 15732), (1311, 15252), (1426, 14022), (1476, 13547), (1558, 12834), (1748, 11439), (1767, 11316), (1886, 10602), (2139, 9348), (2337, 8556), (2356, 8487), (2542, 7866), (2622, 7626), (2829, 7068), (2852, 7011), (3116, 6417), (3534, 5658), (3772, 5301), (3813, 5244), (3933, 5084), (4278, 4674)]