28191780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:155

約数の個数: 192

約数和(自身を含む): 96526080

約数和(自身を除く): 68334300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 37, 45, 51, 54, 60, 68, 74, 83, 85, 90, 102, 108, 111, 135, 148, 153, 166, 170, 180, 185, 204, 222, 249, 255, 270, 306, 332, 333, 340, 370, 415, 444, 459, 498, 510, 540, 555, 612, 629, 666, 740, 747, 765, 830, 918, 996, 999, 1020, 1110, 1245, 1258, 1332, 1411, 1494, 1530, 1660, 1665, 1836, 1887, 1998, 2220, 2241, 2295, 2490, 2516, 2822, 2988, 3060, 3071, 3145, 3330, 3735, 3774, 3996, 4233, 4482, 4590, 4980, 4995, 5644, 5661, 6142, 6290, 6660, 7055, 7470, 7548, 8466, 8964, 9180, 9213, 9435, 9990, 11205, 11322, 12284, 12580, 12699, 14110, 14940, 15355, 16932, 16983, 18426, 18870, 19980, 21165, 22410, 22644, 25398, 27639, 28220, 28305, 30710, 33966, 36852, 37740, 38097, 42330, 44820, 46065, 50796, 52207, 55278, 56610, 61420, 63495, 67932, 76194, 82917, 84660, 84915, 92130, 104414, 110556, 113220, 126990, 138195, 152388, 156621, 165834, 169830, 184260, 190485, 208828, 253980, 261035, 276390, 313242, 331668, 339660, 380970, 414585, 469863, 522070, 552780, 626484, 761940, 783105, 829170, 939726, 1044140, 1409589, 1566210, 1658340, 1879452, 2349315, 2819178, 3132420, 4698630, 5638356, 7047945, 9397260, 14095890, 28191780]

約数ペア:

[(1, 28191780), (2, 14095890), (3, 9397260), (4, 7047945), (5, 5638356), (6, 4698630), (9, 3132420), (10, 2819178), (12, 2349315), (15, 1879452), (17, 1658340), (18, 1566210), (20, 1409589), (27, 1044140), (30, 939726), (34, 829170), (36, 783105), (37, 761940), (45, 626484), (51, 552780), (54, 522070), (60, 469863), (68, 414585), (74, 380970), (83, 339660), (85, 331668), (90, 313242), (102, 276390), (108, 261035), (111, 253980), (135, 208828), (148, 190485), (153, 184260), (166, 169830), (170, 165834), (180, 156621), (185, 152388), (204, 138195), (222, 126990), (249, 113220), (255, 110556), (270, 104414), (306, 92130), (332, 84915), (333, 84660), (340, 82917), (370, 76194), (415, 67932), (444, 63495), (459, 61420), (498, 56610), (510, 55278), (540, 52207), (555, 50796), (612, 46065), (629, 44820), (666, 42330), (740, 38097), (747, 37740), (765, 36852), (830, 33966), (918, 30710), (996, 28305), (999, 28220), (1020, 27639), (1110, 25398), (1245, 22644), (1258, 22410), (1332, 21165), (1411, 19980), (1494, 18870), (1530, 18426), (1660, 16983), (1665, 16932), (1836, 15355), (1887, 14940), (1998, 14110), (2220, 12699), (2241, 12580), (2295, 12284), (2490, 11322), (2516, 11205), (2822, 9990), (2988, 9435), (3060, 9213), (3071, 9180), (3145, 8964), (3330, 8466), (3735, 7548), (3774, 7470), (3996, 7055), (4233, 6660), (4482, 6290), (4590, 6142), (4980, 5661), (4995, 5644)]