81766980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1433}}^1$

素因数の和:1765

約数の個数: 72

約数和(自身を含む): 248982552

約数和(自身を除く): 167215572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 317, 634, 951, 1268, 1433, 1585, 1902, 2853, 2866, 3170, 3804, 4299, 4755, 5706, 5732, 6340, 7165, 8598, 9510, 11412, 12897, 14265, 14330, 17196, 19020, 21495, 25794, 28530, 28660, 42990, 51588, 57060, 64485, 85980, 128970, 257940, 454261, 908522, 1362783, 1817044, 2271305, 2725566, 4088349, 4542610, 5451132, 6813915, 8176698, 9085220, 13627830, 16353396, 20441745, 27255660, 40883490, 81766980]

約数ペア:

[(1, 81766980), (2, 40883490), (3, 27255660), (4, 20441745), (5, 16353396), (6, 13627830), (9, 9085220), (10, 8176698), (12, 6813915), (15, 5451132), (18, 4542610), (20, 4088349), (30, 2725566), (36, 2271305), (45, 1817044), (60, 1362783), (90, 908522), (180, 454261), (317, 257940), (634, 128970), (951, 85980), (1268, 64485), (1433, 57060), (1585, 51588), (1902, 42990), (2853, 28660), (2866, 28530), (3170, 25794), (3804, 21495), (4299, 19020), (4755, 17196), (5706, 14330), (5732, 14265), (6340, 12897), (7165, 11412), (8598, 9510)]