28904772

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:233

約数の個数: 96

約数和(自身を含む): 77271040

約数和(自身を除く): 48366268

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 43, 52, 62, 78, 86, 93, 124, 129, 139, 156, 172, 186, 258, 278, 372, 403, 417, 516, 556, 559, 806, 834, 1118, 1209, 1333, 1612, 1668, 1677, 1807, 2236, 2418, 2666, 3354, 3614, 3999, 4309, 4836, 5332, 5421, 5977, 6708, 7228, 7998, 8618, 10842, 11954, 12927, 15996, 17236, 17329, 17931, 21684, 23908, 25854, 34658, 35862, 51708, 51987, 56017, 69316, 71724, 77701, 103974, 112034, 155402, 168051, 185287, 207948, 224068, 233103, 310804, 336102, 370574, 466206, 555861, 672204, 741148, 932412, 1111722, 2223444, 2408731, 4817462, 7226193, 9634924, 14452386, 28904772]

約数ペア:

[(1, 28904772), (2, 14452386), (3, 9634924), (4, 7226193), (6, 4817462), (12, 2408731), (13, 2223444), (26, 1111722), (31, 932412), (39, 741148), (43, 672204), (52, 555861), (62, 466206), (78, 370574), (86, 336102), (93, 310804), (124, 233103), (129, 224068), (139, 207948), (156, 185287), (172, 168051), (186, 155402), (258, 112034), (278, 103974), (372, 77701), (403, 71724), (417, 69316), (516, 56017), (556, 51987), (559, 51708), (806, 35862), (834, 34658), (1118, 25854), (1209, 23908), (1333, 21684), (1612, 17931), (1668, 17329), (1677, 17236), (1807, 15996), (2236, 12927), (2418, 11954), (2666, 10842), (3354, 8618), (3614, 7998), (3999, 7228), (4309, 6708), (4836, 5977), (5332, 5421)]