81285750

素因数分解:

$2^1\times 3^2\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1$

素因数の和:440

約数の個数: 192

約数和(自身を含む): 271200384

約数和(自身を除く): 189914634

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 25, 26, 30, 35, 39, 42, 45, 50, 63, 65, 70, 75, 78, 90, 91, 105, 117, 125, 126, 130, 150, 175, 182, 195, 210, 225, 234, 250, 273, 315, 325, 350, 375, 390, 397, 450, 455, 525, 546, 585, 630, 650, 750, 794, 819, 875, 910, 975, 1050, 1125, 1170, 1191, 1365, 1575, 1625, 1638, 1750, 1950, 1985, 2250, 2275, 2382, 2625, 2730, 2779, 2925, 3150, 3250, 3573, 3970, 4095, 4550, 4875, 5161, 5250, 5558, 5850, 5955, 6825, 7146, 7875, 8190, 8337, 9750, 9925, 10322, 11375, 11910, 13650, 13895, 14625, 15483, 15750, 16674, 17865, 19850, 20475, 22750, 25011, 25805, 27790, 29250, 29775, 30966, 34125, 35730, 36127, 40950, 41685, 46449, 49625, 50022, 51610, 59550, 68250, 69475, 72254, 77415, 83370, 89325, 92898, 99250, 102375, 108381, 125055, 129025, 138950, 148875, 154830, 178650, 180635, 204750, 208425, 216762, 232245, 250110, 258050, 297750, 325143, 347375, 361270, 387075, 416850, 446625, 464490, 541905, 625275, 645125, 650286, 694750, 774150, 893250, 903175, 1042125, 1083810, 1161225, 1250550, 1290250, 1625715, 1806350, 1935375, 2084250, 2322450, 2709525, 3126375, 3251430, 3870750, 4515875, 5419050, 5806125, 6252750, 8128575, 9031750, 11612250, 13547625, 16257150, 27095250, 40642875, 81285750]

約数ペア:

[(1, 81285750), (2, 40642875), (3, 27095250), (5, 16257150), (6, 13547625), (7, 11612250), (9, 9031750), (10, 8128575), (13, 6252750), (14, 5806125), (15, 5419050), (18, 4515875), (21, 3870750), (25, 3251430), (26, 3126375), (30, 2709525), (35, 2322450), (39, 2084250), (42, 1935375), (45, 1806350), (50, 1625715), (63, 1290250), (65, 1250550), (70, 1161225), (75, 1083810), (78, 1042125), (90, 903175), (91, 893250), (105, 774150), (117, 694750), (125, 650286), (126, 645125), (130, 625275), (150, 541905), (175, 464490), (182, 446625), (195, 416850), (210, 387075), (225, 361270), (234, 347375), (250, 325143), (273, 297750), (315, 258050), (325, 250110), (350, 232245), (375, 216762), (390, 208425), (397, 204750), (450, 180635), (455, 178650), (525, 154830), (546, 148875), (585, 138950), (630, 129025), (650, 125055), (750, 108381), (794, 102375), (819, 99250), (875, 92898), (910, 89325), (975, 83370), (1050, 77415), (1125, 72254), (1170, 69475), (1191, 68250), (1365, 59550), (1575, 51610), (1625, 50022), (1638, 49625), (1750, 46449), (1950, 41685), (1985, 40950), (2250, 36127), (2275, 35730), (2382, 34125), (2625, 30966), (2730, 29775), (2779, 29250), (2925, 27790), (3150, 25805), (3250, 25011), (3573, 22750), (3970, 20475), (4095, 19850), (4550, 17865), (4875, 16674), (5161, 15750), (5250, 15483), (5558, 14625), (5850, 13895), (5955, 13650), (6825, 11910), (7146, 11375), (7875, 10322), (8190, 9925), (8337, 9750)]