1245420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 4481568

約数和(自身を除く): 3236148

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 17, 18, 20, 22, 30, 33, 34, 36, 37, 44, 45, 51, 55, 60, 66, 68, 74, 85, 90, 99, 102, 110, 111, 132, 148, 153, 165, 170, 180, 185, 187, 198, 204, 220, 222, 255, 306, 330, 333, 340, 370, 374, 396, 407, 444, 495, 510, 555, 561, 612, 629, 660, 666, 740, 748, 765, 814, 935, 990, 1020, 1110, 1122, 1221, 1258, 1332, 1530, 1628, 1665, 1683, 1870, 1887, 1980, 2035, 2220, 2244, 2442, 2516, 2805, 3060, 3145, 3330, 3366, 3663, 3740, 3774, 4070, 4884, 5610, 5661, 6105, 6290, 6660, 6732, 6919, 7326, 7548, 8140, 8415, 9435, 11220, 11322, 12210, 12580, 13838, 14652, 16830, 18315, 18870, 20757, 22644, 24420, 27676, 28305, 33660, 34595, 36630, 37740, 41514, 56610, 62271, 69190, 73260, 83028, 103785, 113220, 124542, 138380, 207570, 249084, 311355, 415140, 622710, 1245420]

約数ペア:

[(1, 1245420), (2, 622710), (3, 415140), (4, 311355), (5, 249084), (6, 207570), (9, 138380), (10, 124542), (11, 113220), (12, 103785), (15, 83028), (17, 73260), (18, 69190), (20, 62271), (22, 56610), (30, 41514), (33, 37740), (34, 36630), (36, 34595), (37, 33660), (44, 28305), (45, 27676), (51, 24420), (55, 22644), (60, 20757), (66, 18870), (68, 18315), (74, 16830), (85, 14652), (90, 13838), (99, 12580), (102, 12210), (110, 11322), (111, 11220), (132, 9435), (148, 8415), (153, 8140), (165, 7548), (170, 7326), (180, 6919), (185, 6732), (187, 6660), (198, 6290), (204, 6105), (220, 5661), (222, 5610), (255, 4884), (306, 4070), (330, 3774), (333, 3740), (340, 3663), (370, 3366), (374, 3330), (396, 3145), (407, 3060), (444, 2805), (495, 2516), (510, 2442), (555, 2244), (561, 2220), (612, 2035), (629, 1980), (660, 1887), (666, 1870), (740, 1683), (748, 1665), (765, 1628), (814, 1530), (935, 1332), (990, 1258), (1020, 1221), (1110, 1122)]