21987526750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1447}}^1$

素因数の和:1947

約数の個数: 128

約数和(自身を含む): 49659217920

約数和(自身を除く): 27671691170

約数列:

[1, 2, 5, 7, 10, 14, 19, 25, 35, 38, 50, 70, 95, 125, 133, 175, 190, 250, 266, 350, 457, 475, 665, 875, 914, 950, 1330, 1447, 1750, 2285, 2375, 2894, 3199, 3325, 4570, 4750, 6398, 6650, 7235, 8683, 10129, 11425, 14470, 15995, 16625, 17366, 20258, 22850, 27493, 31990, 33250, 36175, 43415, 50645, 54986, 57125, 60781, 72350, 79975, 86830, 101290, 114250, 121562, 137465, 159950, 180875, 192451, 217075, 253225, 274930, 303905, 361750, 384902, 399875, 434150, 506450, 607810, 661279, 687325, 799750, 962255, 1085375, 1266125, 1322558, 1374650, 1519525, 1924510, 2170750, 2532250, 3039050, 3306395, 3436625, 4628953, 4811275, 6612790, 6873250, 7597625, 9257906, 9622550, 12564301, 15195250, 16531975, 23144765, 24056375, 25128602, 33063950, 46289530, 48112750, 62821505, 82659875, 87950107, 115723825, 125643010, 165319750, 175900214, 231447650, 314107525, 439750535, 578619125, 628215050, 879501070, 1157238250, 1570537625, 2198752675, 3141075250, 4397505350, 10993763375, 21987526750]

約数ペア:

[(1, 21987526750), (2, 10993763375), (5, 4397505350), (7, 3141075250), (10, 2198752675), (14, 1570537625), (19, 1157238250), (25, 879501070), (35, 628215050), (38, 578619125), (50, 439750535), (70, 314107525), (95, 231447650), (125, 175900214), (133, 165319750), (175, 125643010), (190, 115723825), (250, 87950107), (266, 82659875), (350, 62821505), (457, 48112750), (475, 46289530), (665, 33063950), (875, 25128602), (914, 24056375), (950, 23144765), (1330, 16531975), (1447, 15195250), (1750, 12564301), (2285, 9622550), (2375, 9257906), (2894, 7597625), (3199, 6873250), (3325, 6612790), (4570, 4811275), (4750, 4628953), (6398, 3436625), (6650, 3306395), (7235, 3039050), (8683, 2532250), (10129, 2170750), (11425, 1924510), (14470, 1519525), (15995, 1374650), (16625, 1322558), (17366, 1266125), (20258, 1085375), (22850, 962255), (27493, 799750), (31990, 687325), (33250, 661279), (36175, 607810), (43415, 506450), (50645, 434150), (54986, 399875), (57125, 384902), (60781, 361750), (72350, 303905), (79975, 274930), (86830, 253225), (101290, 217075), (114250, 192451), (121562, 180875), (137465, 159950)]