19995144

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3373}}^1$

素因数の和:3414

約数の個数: 64

約数和(自身を含む): 56683200

約数和(自身を除く): 36688056

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 247, 312, 456, 494, 741, 988, 1482, 1976, 2964, 3373, 5928, 6746, 10119, 13492, 20238, 26984, 40476, 43849, 64087, 80952, 87698, 128174, 131547, 175396, 192261, 256348, 263094, 350792, 384522, 512696, 526188, 769044, 833131, 1052376, 1538088, 1666262, 2499393, 3332524, 4998786, 6665048, 9997572, 19995144]

約数ペア:

[(1, 19995144), (2, 9997572), (3, 6665048), (4, 4998786), (6, 3332524), (8, 2499393), (12, 1666262), (13, 1538088), (19, 1052376), (24, 833131), (26, 769044), (38, 526188), (39, 512696), (52, 384522), (57, 350792), (76, 263094), (78, 256348), (104, 192261), (114, 175396), (152, 131547), (156, 128174), (228, 87698), (247, 80952), (312, 64087), (456, 43849), (494, 40476), (741, 26984), (988, 20238), (1482, 13492), (1976, 10119), (2964, 6746), (3373, 5928)]