87854390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 178319232

約数和(自身を除く): 90464842

約数列:

[1, 2, 5, 10, 13, 26, 41, 53, 65, 82, 106, 130, 205, 265, 311, 410, 530, 533, 622, 689, 1066, 1378, 1555, 2173, 2665, 3110, 3445, 4043, 4346, 5330, 6890, 8086, 10865, 12751, 16483, 20215, 21730, 25502, 28249, 32966, 40430, 56498, 63755, 82415, 127510, 141245, 164830, 165763, 214279, 282490, 331526, 428558, 675803, 828815, 1071395, 1351606, 1657630, 2142790, 3379015, 6758030, 8785439, 17570878, 43927195, 87854390]

約数ペア:

[(1, 87854390), (2, 43927195), (5, 17570878), (10, 8785439), (13, 6758030), (26, 3379015), (41, 2142790), (53, 1657630), (65, 1351606), (82, 1071395), (106, 828815), (130, 675803), (205, 428558), (265, 331526), (311, 282490), (410, 214279), (530, 165763), (533, 164830), (622, 141245), (689, 127510), (1066, 82415), (1378, 63755), (1555, 56498), (2173, 40430), (2665, 32966), (3110, 28249), (3445, 25502), (4043, 21730), (4346, 20215), (5330, 16483), (6890, 12751), (8086, 10865)]