28491190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:397

約数の個数: 64

約数和(自身を含む): 63866880

約数和(自身を除く): 35375690

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 131, 182, 239, 262, 455, 478, 655, 910, 917, 1195, 1310, 1673, 1703, 1834, 2390, 3107, 3346, 3406, 4585, 6214, 8365, 8515, 9170, 11921, 15535, 16730, 17030, 21749, 23842, 31070, 31309, 43498, 59605, 62618, 108745, 119210, 156545, 217490, 219163, 313090, 407017, 438326, 814034, 1095815, 2035085, 2191630, 2849119, 4070170, 5698238, 14245595, 28491190]

約数ペア:

[(1, 28491190), (2, 14245595), (5, 5698238), (7, 4070170), (10, 2849119), (13, 2191630), (14, 2035085), (26, 1095815), (35, 814034), (65, 438326), (70, 407017), (91, 313090), (130, 219163), (131, 217490), (182, 156545), (239, 119210), (262, 108745), (455, 62618), (478, 59605), (655, 43498), (910, 31309), (917, 31070), (1195, 23842), (1310, 21749), (1673, 17030), (1703, 16730), (1834, 15535), (2390, 11921), (3107, 9170), (3346, 8515), (3406, 8365), (4585, 6214)]