81305640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5791}}^1$

素因数の和:5824

約数の個数: 128

約数和(自身を含む): 291916800

約数和(自身を除く): 210611160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2340, 2808, 3510, 4680, 5791, 7020, 11582, 14040, 17373, 23164, 28955, 34746, 46328, 52119, 57910, 69492, 75283, 86865, 104238, 115820, 138984, 150566, 156357, 173730, 208476, 225849, 231640, 260595, 301132, 312714, 347460, 376415, 416952, 451698, 521190, 602264, 625428, 677547, 694920, 752830, 781785, 903396, 1042380, 1129245, 1250856, 1355094, 1505660, 1563570, 1806792, 2032641, 2084760, 2258490, 2710188, 3011320, 3127140, 3387735, 4065282, 4516980, 5420376, 6254280, 6775470, 8130564, 9033960, 10163205, 13550940, 16261128, 20326410, 27101880, 40652820, 81305640]

約数ペア:

[(1, 81305640), (2, 40652820), (3, 27101880), (4, 20326410), (5, 16261128), (6, 13550940), (8, 10163205), (9, 9033960), (10, 8130564), (12, 6775470), (13, 6254280), (15, 5420376), (18, 4516980), (20, 4065282), (24, 3387735), (26, 3127140), (27, 3011320), (30, 2710188), (36, 2258490), (39, 2084760), (40, 2032641), (45, 1806792), (52, 1563570), (54, 1505660), (60, 1355094), (65, 1250856), (72, 1129245), (78, 1042380), (90, 903396), (104, 781785), (108, 752830), (117, 694920), (120, 677547), (130, 625428), (135, 602264), (156, 521190), (180, 451698), (195, 416952), (216, 376415), (234, 347460), (260, 312714), (270, 301132), (312, 260595), (351, 231640), (360, 225849), (390, 208476), (468, 173730), (520, 156357), (540, 150566), (585, 138984), (702, 115820), (780, 104238), (936, 86865), (1080, 75283), (1170, 69492), (1404, 57910), (1560, 52119), (1755, 46328), (2340, 34746), (2808, 28955), (3510, 23164), (4680, 17373), (5791, 14040), (7020, 11582)]