638717040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68239}}^1$

素因数の和:68271

約数の個数: 120

約数和(自身を含む): 2310060480

約数和(自身を除く): 1671343440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 104, 117, 120, 130, 144, 156, 180, 195, 208, 234, 240, 260, 312, 360, 390, 468, 520, 585, 624, 720, 780, 936, 1040, 1170, 1560, 1872, 2340, 3120, 4680, 9360, 68239, 136478, 204717, 272956, 341195, 409434, 545912, 614151, 682390, 818868, 887107, 1023585, 1091824, 1228302, 1364780, 1637736, 1774214, 2047170, 2456604, 2661321, 2729560, 3070755, 3275472, 3548428, 4094340, 4435535, 4913208, 5322642, 5459120, 6141510, 7096856, 7983963, 8188680, 8871070, 9826416, 10645284, 12283020, 13306605, 14193712, 15967926, 16377360, 17742140, 21290568, 24566040, 26613210, 31935852, 35484280, 39919815, 42581136, 49132080, 53226420, 63871704, 70968560, 79839630, 106452840, 127743408, 159679260, 212905680, 319358520, 638717040]

約数ペア:

[(1, 638717040), (2, 319358520), (3, 212905680), (4, 159679260), (5, 127743408), (6, 106452840), (8, 79839630), (9, 70968560), (10, 63871704), (12, 53226420), (13, 49132080), (15, 42581136), (16, 39919815), (18, 35484280), (20, 31935852), (24, 26613210), (26, 24566040), (30, 21290568), (36, 17742140), (39, 16377360), (40, 15967926), (45, 14193712), (48, 13306605), (52, 12283020), (60, 10645284), (65, 9826416), (72, 8871070), (78, 8188680), (80, 7983963), (90, 7096856), (104, 6141510), (117, 5459120), (120, 5322642), (130, 4913208), (144, 4435535), (156, 4094340), (180, 3548428), (195, 3275472), (208, 3070755), (234, 2729560), (240, 2661321), (260, 2456604), (312, 2047170), (360, 1774214), (390, 1637736), (468, 1364780), (520, 1228302), (585, 1091824), (624, 1023585), (720, 887107), (780, 818868), (936, 682390), (1040, 614151), (1170, 545912), (1560, 409434), (1872, 341195), (2340, 272956), (3120, 204717), (4680, 136478), (9360, 68239)]