189640640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2731}}^1$

素因数の和:2786

約数の個数: 112

約数和(自身を含む): 532936704

約数和(自身を除く): 343296064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 868, 992, 1085, 1120, 1240, 1736, 1984, 2170, 2240, 2480, 2731, 3472, 4340, 4960, 5462, 6944, 8680, 9920, 10924, 13655, 13888, 17360, 19117, 21848, 27310, 34720, 38234, 43696, 54620, 69440, 76468, 84661, 87392, 95585, 109240, 152936, 169322, 174784, 191170, 218480, 305872, 338644, 382340, 423305, 436960, 592627, 611744, 677288, 764680, 846610, 873920, 1185254, 1223488, 1354576, 1529360, 1693220, 2370508, 2709152, 2963135, 3058720, 3386440, 4741016, 5418304, 5926270, 6117440, 6772880, 9482032, 11852540, 13545760, 18964064, 23705080, 27091520, 37928128, 47410160, 94820320, 189640640]

約数ペア:

[(1, 189640640), (2, 94820320), (4, 47410160), (5, 37928128), (7, 27091520), (8, 23705080), (10, 18964064), (14, 13545760), (16, 11852540), (20, 9482032), (28, 6772880), (31, 6117440), (32, 5926270), (35, 5418304), (40, 4741016), (56, 3386440), (62, 3058720), (64, 2963135), (70, 2709152), (80, 2370508), (112, 1693220), (124, 1529360), (140, 1354576), (155, 1223488), (160, 1185254), (217, 873920), (224, 846610), (248, 764680), (280, 677288), (310, 611744), (320, 592627), (434, 436960), (448, 423305), (496, 382340), (560, 338644), (620, 305872), (868, 218480), (992, 191170), (1085, 174784), (1120, 169322), (1240, 152936), (1736, 109240), (1984, 95585), (2170, 87392), (2240, 84661), (2480, 76468), (2731, 69440), (3472, 54620), (4340, 43696), (4960, 38234), (5462, 34720), (6944, 27310), (8680, 21848), (9920, 19117), (10924, 17360), (13655, 13888)]