81320760

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1321}}^1$

素因数の和:1363

約数の個数: 160

約数和(自身を含む): 287931600

約数和(自身を除く): 206610840

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 81, 90, 95, 108, 114, 120, 135, 152, 162, 171, 180, 190, 216, 228, 270, 285, 324, 342, 360, 380, 405, 456, 513, 540, 570, 648, 684, 760, 810, 855, 1026, 1080, 1140, 1321, 1368, 1539, 1620, 1710, 2052, 2280, 2565, 2642, 3078, 3240, 3420, 3963, 4104, 5130, 5284, 6156, 6605, 6840, 7695, 7926, 10260, 10568, 11889, 12312, 13210, 15390, 15852, 19815, 20520, 23778, 25099, 26420, 30780, 31704, 35667, 39630, 47556, 50198, 52840, 59445, 61560, 71334, 75297, 79260, 95112, 100396, 107001, 118890, 125495, 142668, 150594, 158520, 178335, 200792, 214002, 225891, 237780, 250990, 285336, 301188, 356670, 376485, 428004, 451782, 475560, 501980, 535005, 602376, 677673, 713340, 752970, 856008, 903564, 1003960, 1070010, 1129455, 1355346, 1426680, 1505940, 1807128, 2033019, 2140020, 2258910, 2710692, 3011880, 3388365, 4066038, 4280040, 4517820, 5421384, 6776730, 8132076, 9035640, 10165095, 13553460, 16264152, 20330190, 27106920, 40660380, 81320760]

約数ペア:

[(1, 81320760), (2, 40660380), (3, 27106920), (4, 20330190), (5, 16264152), (6, 13553460), (8, 10165095), (9, 9035640), (10, 8132076), (12, 6776730), (15, 5421384), (18, 4517820), (19, 4280040), (20, 4066038), (24, 3388365), (27, 3011880), (30, 2710692), (36, 2258910), (38, 2140020), (40, 2033019), (45, 1807128), (54, 1505940), (57, 1426680), (60, 1355346), (72, 1129455), (76, 1070010), (81, 1003960), (90, 903564), (95, 856008), (108, 752970), (114, 713340), (120, 677673), (135, 602376), (152, 535005), (162, 501980), (171, 475560), (180, 451782), (190, 428004), (216, 376485), (228, 356670), (270, 301188), (285, 285336), (324, 250990), (342, 237780), (360, 225891), (380, 214002), (405, 200792), (456, 178335), (513, 158520), (540, 150594), (570, 142668), (648, 125495), (684, 118890), (760, 107001), (810, 100396), (855, 95112), (1026, 79260), (1080, 75297), (1140, 71334), (1321, 61560), (1368, 59445), (1539, 52840), (1620, 50198), (1710, 47556), (2052, 39630), (2280, 35667), (2565, 31704), (2642, 30780), (3078, 26420), (3240, 25099), (3420, 23778), (3963, 20520), (4104, 19815), (5130, 15852), (5284, 15390), (6156, 13210), (6605, 12312), (6840, 11889), (7695, 10568), (7926, 10260)]