1378260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:78

約数の個数: 144

約数和(自身を含む): 4892160

約数和(自身を除く): 3513900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 19, 20, 26, 30, 31, 36, 38, 39, 45, 52, 57, 60, 62, 65, 76, 78, 90, 93, 95, 114, 117, 124, 130, 155, 156, 171, 180, 186, 190, 195, 228, 234, 247, 260, 279, 285, 310, 342, 372, 380, 390, 403, 465, 468, 494, 558, 570, 585, 589, 620, 684, 741, 780, 806, 855, 930, 988, 1116, 1140, 1170, 1178, 1209, 1235, 1395, 1482, 1612, 1710, 1767, 1860, 2015, 2223, 2340, 2356, 2418, 2470, 2790, 2945, 2964, 3420, 3534, 3627, 3705, 4030, 4446, 4836, 4940, 5301, 5580, 5890, 6045, 7068, 7254, 7410, 7657, 8060, 8835, 8892, 10602, 11115, 11780, 12090, 14508, 14820, 15314, 17670, 18135, 21204, 22230, 22971, 24180, 26505, 30628, 35340, 36270, 38285, 44460, 45942, 53010, 68913, 72540, 76570, 91884, 106020, 114855, 137826, 153140, 229710, 275652, 344565, 459420, 689130, 1378260]

約数ペア:

[(1, 1378260), (2, 689130), (3, 459420), (4, 344565), (5, 275652), (6, 229710), (9, 153140), (10, 137826), (12, 114855), (13, 106020), (15, 91884), (18, 76570), (19, 72540), (20, 68913), (26, 53010), (30, 45942), (31, 44460), (36, 38285), (38, 36270), (39, 35340), (45, 30628), (52, 26505), (57, 24180), (60, 22971), (62, 22230), (65, 21204), (76, 18135), (78, 17670), (90, 15314), (93, 14820), (95, 14508), (114, 12090), (117, 11780), (124, 11115), (130, 10602), (155, 8892), (156, 8835), (171, 8060), (180, 7657), (186, 7410), (190, 7254), (195, 7068), (228, 6045), (234, 5890), (247, 5580), (260, 5301), (279, 4940), (285, 4836), (310, 4446), (342, 4030), (372, 3705), (380, 3627), (390, 3534), (403, 3420), (465, 2964), (468, 2945), (494, 2790), (558, 2470), (570, 2418), (585, 2356), (589, 2340), (620, 2223), (684, 2015), (741, 1860), (780, 1767), (806, 1710), (855, 1612), (930, 1482), (988, 1395), (1116, 1235), (1140, 1209), (1170, 1178)]