178478020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{229}}^1\times {\mathrm{293}}^1$

素因数の和:557

約数の個数: 96

約数和(自身を含む): 454406400

約数和(自身を除く): 275928380

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 229, 266, 293, 380, 458, 532, 586, 665, 916, 1145, 1172, 1330, 1465, 1603, 2051, 2290, 2660, 2930, 3206, 4102, 4351, 4580, 5567, 5860, 6412, 8015, 8204, 8702, 10255, 11134, 16030, 17404, 20510, 21755, 22268, 27835, 30457, 32060, 38969, 41020, 43510, 55670, 60914, 67097, 77938, 87020, 111340, 121828, 134194, 152285, 155876, 194845, 268388, 304570, 335485, 389690, 469679, 609140, 670970, 779380, 939358, 1274843, 1341940, 1878716, 2348395, 2549686, 4696790, 5099372, 6374215, 8923901, 9393580, 12748430, 17847802, 25496860, 35695604, 44619505, 89239010, 178478020]

約数ペア:

[(1, 178478020), (2, 89239010), (4, 44619505), (5, 35695604), (7, 25496860), (10, 17847802), (14, 12748430), (19, 9393580), (20, 8923901), (28, 6374215), (35, 5099372), (38, 4696790), (70, 2549686), (76, 2348395), (95, 1878716), (133, 1341940), (140, 1274843), (190, 939358), (229, 779380), (266, 670970), (293, 609140), (380, 469679), (458, 389690), (532, 335485), (586, 304570), (665, 268388), (916, 194845), (1145, 155876), (1172, 152285), (1330, 134194), (1465, 121828), (1603, 111340), (2051, 87020), (2290, 77938), (2660, 67097), (2930, 60914), (3206, 55670), (4102, 43510), (4351, 41020), (4580, 38969), (5567, 32060), (5860, 30457), (6412, 27835), (8015, 22268), (8204, 21755), (8702, 20510), (10255, 17404), (11134, 16030)]