18758415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 34997760

約数和(自身を除く): 16239345

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 61, 65, 83, 95, 183, 195, 247, 249, 285, 305, 415, 741, 793, 915, 1079, 1159, 1235, 1245, 1577, 2379, 3237, 3477, 3705, 3965, 4731, 5063, 5395, 5795, 7885, 11895, 15067, 15189, 16185, 17385, 20501, 23655, 25315, 45201, 61503, 65819, 75335, 75945, 96197, 102505, 197457, 226005, 288591, 307515, 329095, 480985, 987285, 1250561, 1442955, 3751683, 6252805, 18758415]

約数ペア:

[(1, 18758415), (3, 6252805), (5, 3751683), (13, 1442955), (15, 1250561), (19, 987285), (39, 480985), (57, 329095), (61, 307515), (65, 288591), (83, 226005), (95, 197457), (183, 102505), (195, 96197), (247, 75945), (249, 75335), (285, 65819), (305, 61503), (415, 45201), (741, 25315), (793, 23655), (915, 20501), (1079, 17385), (1159, 16185), (1235, 15189), (1245, 15067), (1577, 11895), (2379, 7885), (3237, 5795), (3477, 5395), (3705, 5063), (3965, 4731)]