72649640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{389}}^1$

素因数の和:459

約数の個数: 128

約数和(自身を含む): 202176000

約数和(自身を除く): 129526360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 29, 35, 40, 46, 56, 58, 70, 92, 115, 116, 140, 145, 161, 184, 203, 230, 232, 280, 290, 322, 389, 406, 460, 580, 644, 667, 778, 805, 812, 920, 1015, 1160, 1288, 1334, 1556, 1610, 1624, 1945, 2030, 2668, 2723, 3112, 3220, 3335, 3890, 4060, 4669, 5336, 5446, 6440, 6670, 7780, 8120, 8947, 9338, 10892, 11281, 13340, 13615, 15560, 17894, 18676, 21784, 22562, 23345, 26680, 27230, 35788, 37352, 44735, 45124, 46690, 54460, 56405, 62629, 71576, 78967, 89470, 90248, 93380, 108920, 112810, 125258, 157934, 178940, 186760, 225620, 250516, 259463, 313145, 315868, 357880, 394835, 451240, 501032, 518926, 626290, 631736, 789670, 1037852, 1252580, 1297315, 1579340, 1816241, 2075704, 2505160, 2594630, 3158680, 3632482, 5189260, 7264964, 9081205, 10378520, 14529928, 18162410, 36324820, 72649640]

約数ペア:

[(1, 72649640), (2, 36324820), (4, 18162410), (5, 14529928), (7, 10378520), (8, 9081205), (10, 7264964), (14, 5189260), (20, 3632482), (23, 3158680), (28, 2594630), (29, 2505160), (35, 2075704), (40, 1816241), (46, 1579340), (56, 1297315), (58, 1252580), (70, 1037852), (92, 789670), (115, 631736), (116, 626290), (140, 518926), (145, 501032), (161, 451240), (184, 394835), (203, 357880), (230, 315868), (232, 313145), (280, 259463), (290, 250516), (322, 225620), (389, 186760), (406, 178940), (460, 157934), (580, 125258), (644, 112810), (667, 108920), (778, 93380), (805, 90248), (812, 89470), (920, 78967), (1015, 71576), (1160, 62629), (1288, 56405), (1334, 54460), (1556, 46690), (1610, 45124), (1624, 44735), (1945, 37352), (2030, 35788), (2668, 27230), (2723, 26680), (3112, 23345), (3220, 22562), (3335, 21784), (3890, 18676), (4060, 17894), (4669, 15560), (5336, 13615), (5446, 13340), (6440, 11281), (6670, 10892), (7780, 9338), (8120, 8947)]