390840905

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{73}}^1$

素因数の和:187

約数の個数: 72

約数和(自身を含む): 610479576

約数和(自身を除く): 219638671

約数列:

[1, 5, 7, 13, 35, 41, 49, 65, 73, 91, 205, 245, 287, 365, 455, 511, 533, 637, 949, 1435, 1681, 2009, 2555, 2665, 2993, 3185, 3577, 3731, 4745, 6643, 8405, 10045, 11767, 14965, 17885, 18655, 20951, 21853, 26117, 33215, 38909, 46501, 58835, 82369, 104755, 109265, 122713, 130585, 146657, 152971, 194545, 232505, 272363, 411845, 613565, 733285, 764855, 858991, 1070797, 1361815, 1595269, 1906541, 4294955, 5353985, 6012937, 7976345, 9532705, 11166883, 30064685, 55834415, 78168181, 390840905]

約数ペア:

[(1, 390840905), (5, 78168181), (7, 55834415), (13, 30064685), (35, 11166883), (41, 9532705), (49, 7976345), (65, 6012937), (73, 5353985), (91, 4294955), (205, 1906541), (245, 1595269), (287, 1361815), (365, 1070797), (455, 858991), (511, 764855), (533, 733285), (637, 613565), (949, 411845), (1435, 272363), (1681, 232505), (2009, 194545), (2555, 152971), (2665, 146657), (2993, 130585), (3185, 122713), (3577, 109265), (3731, 104755), (4745, 82369), (6643, 58835), (8405, 46501), (10045, 38909), (11767, 33215), (14965, 26117), (17885, 21853), (18655, 20951)]