61407280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2251}}^1$

素因数の和:2306

約数の個数: 80

約数和(自身を含む): 160846848

約数和(自身を除く): 99439568

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2251, 2480, 2728, 3410, 4502, 5456, 6820, 9004, 11255, 13640, 18008, 22510, 24761, 27280, 36016, 45020, 49522, 69781, 90040, 99044, 123805, 139562, 180080, 198088, 247610, 279124, 348905, 396176, 495220, 558248, 697810, 767591, 990440, 1116496, 1395620, 1535182, 1980880, 2791240, 3070364, 3837955, 5582480, 6140728, 7675910, 12281456, 15351820, 30703640, 61407280]

約数ペア:

[(1, 61407280), (2, 30703640), (4, 15351820), (5, 12281456), (8, 7675910), (10, 6140728), (11, 5582480), (16, 3837955), (20, 3070364), (22, 2791240), (31, 1980880), (40, 1535182), (44, 1395620), (55, 1116496), (62, 990440), (80, 767591), (88, 697810), (110, 558248), (124, 495220), (155, 396176), (176, 348905), (220, 279124), (248, 247610), (310, 198088), (341, 180080), (440, 139562), (496, 123805), (620, 99044), (682, 90040), (880, 69781), (1240, 49522), (1364, 45020), (1705, 36016), (2251, 27280), (2480, 24761), (2728, 22510), (3410, 18008), (4502, 13640), (5456, 11255), (6820, 9004)]