168721140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21143}}^1$

素因数の和:21181

約数の個数: 96

約数和(自身を含む): 568350720

約数和(自身を除く): 399629580

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 57, 60, 70, 76, 84, 95, 105, 114, 133, 140, 190, 210, 228, 266, 285, 380, 399, 420, 532, 570, 665, 798, 1140, 1330, 1596, 1995, 2660, 3990, 7980, 21143, 42286, 63429, 84572, 105715, 126858, 148001, 211430, 253716, 296002, 317145, 401717, 422860, 444003, 592004, 634290, 740005, 803434, 888006, 1205151, 1268580, 1480010, 1606868, 1776012, 2008585, 2220015, 2410302, 2812019, 2960020, 4017170, 4440030, 4820604, 5624038, 6025755, 8034340, 8436057, 8880060, 11248076, 12051510, 14060095, 16872114, 24103020, 28120190, 33744228, 42180285, 56240380, 84360570, 168721140]

約数ペア:

[(1, 168721140), (2, 84360570), (3, 56240380), (4, 42180285), (5, 33744228), (6, 28120190), (7, 24103020), (10, 16872114), (12, 14060095), (14, 12051510), (15, 11248076), (19, 8880060), (20, 8436057), (21, 8034340), (28, 6025755), (30, 5624038), (35, 4820604), (38, 4440030), (42, 4017170), (57, 2960020), (60, 2812019), (70, 2410302), (76, 2220015), (84, 2008585), (95, 1776012), (105, 1606868), (114, 1480010), (133, 1268580), (140, 1205151), (190, 888006), (210, 803434), (228, 740005), (266, 634290), (285, 592004), (380, 444003), (399, 422860), (420, 401717), (532, 317145), (570, 296002), (665, 253716), (798, 211430), (1140, 148001), (1330, 126858), (1596, 105715), (1995, 84572), (2660, 63429), (3990, 42286), (7980, 21143)]