78720915

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{571}}^1$

素因数の和:700

約数の個数: 64

約数和(自身を含む): 156828672

約数和(自身を除く): 78107757

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 101, 105, 195, 273, 303, 455, 505, 571, 707, 1313, 1365, 1515, 1713, 2121, 2855, 3535, 3939, 3997, 6565, 7423, 8565, 9191, 10605, 11991, 19695, 19985, 22269, 27573, 37115, 45955, 51961, 57671, 59955, 111345, 137865, 155883, 173013, 259805, 288355, 403697, 749723, 779415, 865065, 1211091, 2018485, 2249169, 3748615, 5248061, 6055455, 11245845, 15744183, 26240305, 78720915]

約数ペア:

[(1, 78720915), (3, 26240305), (5, 15744183), (7, 11245845), (13, 6055455), (15, 5248061), (21, 3748615), (35, 2249169), (39, 2018485), (65, 1211091), (91, 865065), (101, 779415), (105, 749723), (195, 403697), (273, 288355), (303, 259805), (455, 173013), (505, 155883), (571, 137865), (707, 111345), (1313, 59955), (1365, 57671), (1515, 51961), (1713, 45955), (2121, 37115), (2855, 27573), (3535, 22269), (3939, 19985), (3997, 19695), (6565, 11991), (7423, 10605), (8565, 9191)]