247975736

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{421}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 508628160

約数和(自身を除く): 260652424

約数列:

[1, 2, 4, 8, 17, 34, 61, 68, 71, 122, 136, 142, 244, 284, 421, 488, 568, 842, 1037, 1207, 1684, 2074, 2414, 3368, 4148, 4331, 4828, 7157, 8296, 8662, 9656, 14314, 17324, 25681, 28628, 29891, 34648, 51362, 57256, 59782, 73627, 102724, 119564, 147254, 205448, 239128, 294508, 436577, 508147, 589016, 873154, 1016294, 1746308, 1823351, 2032588, 3492616, 3646702, 4065176, 7293404, 14586808, 30996967, 61993934, 123987868, 247975736]

約数ペア:

[(1, 247975736), (2, 123987868), (4, 61993934), (8, 30996967), (17, 14586808), (34, 7293404), (61, 4065176), (68, 3646702), (71, 3492616), (122, 2032588), (136, 1823351), (142, 1746308), (244, 1016294), (284, 873154), (421, 589016), (488, 508147), (568, 436577), (842, 294508), (1037, 239128), (1207, 205448), (1684, 147254), (2074, 119564), (2414, 102724), (3368, 73627), (4148, 59782), (4331, 57256), (4828, 51362), (7157, 34648), (8296, 29891), (8662, 28628), (9656, 25681), (14314, 17324)]