31890075

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 66662400

約数和(自身を除く): 34772325

約数列:

[1, 3, 5, 7, 15, 19, 21, 23, 25, 35, 57, 69, 75, 95, 105, 115, 133, 139, 161, 175, 285, 345, 399, 417, 437, 475, 483, 525, 575, 665, 695, 805, 973, 1311, 1425, 1725, 1995, 2085, 2185, 2415, 2641, 2919, 3059, 3197, 3325, 3475, 4025, 4865, 6555, 7923, 9177, 9591, 9975, 10425, 10925, 12075, 13205, 14595, 15295, 15985, 18487, 22379, 24325, 32775, 39615, 45885, 47955, 55461, 60743, 66025, 67137, 72975, 76475, 79925, 92435, 111895, 182229, 198075, 229425, 239775, 277305, 303715, 335685, 425201, 462175, 559475, 911145, 1275603, 1386525, 1518575, 1678425, 2126005, 4555725, 6378015, 10630025, 31890075]

約数ペア:

[(1, 31890075), (3, 10630025), (5, 6378015), (7, 4555725), (15, 2126005), (19, 1678425), (21, 1518575), (23, 1386525), (25, 1275603), (35, 911145), (57, 559475), (69, 462175), (75, 425201), (95, 335685), (105, 303715), (115, 277305), (133, 239775), (139, 229425), (161, 198075), (175, 182229), (285, 111895), (345, 92435), (399, 79925), (417, 76475), (437, 72975), (475, 67137), (483, 66025), (525, 60743), (575, 55461), (665, 47955), (695, 45885), (805, 39615), (973, 32775), (1311, 24325), (1425, 22379), (1725, 18487), (1995, 15985), (2085, 15295), (2185, 14595), (2415, 13205), (2641, 12075), (2919, 10925), (3059, 10425), (3197, 9975), (3325, 9591), (3475, 9177), (4025, 7923), (4865, 6555)]