19370025

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 38301120

約数和(自身を除く): 18931095

約数列:

[1, 3, 5, 9, 15, 19, 23, 25, 45, 57, 69, 75, 95, 115, 171, 197, 207, 225, 285, 345, 437, 475, 575, 591, 855, 985, 1035, 1311, 1425, 1725, 1773, 2185, 2955, 3743, 3933, 4275, 4531, 4925, 5175, 6555, 8865, 10925, 11229, 13593, 14775, 18715, 19665, 22655, 32775, 33687, 40779, 44325, 56145, 67965, 86089, 93575, 98325, 113275, 168435, 203895, 258267, 280725, 339825, 430445, 774801, 842175, 1019475, 1291335, 2152225, 3874005, 6456675, 19370025]

約数ペア:

[(1, 19370025), (3, 6456675), (5, 3874005), (9, 2152225), (15, 1291335), (19, 1019475), (23, 842175), (25, 774801), (45, 430445), (57, 339825), (69, 280725), (75, 258267), (95, 203895), (115, 168435), (171, 113275), (197, 98325), (207, 93575), (225, 86089), (285, 67965), (345, 56145), (437, 44325), (475, 40779), (575, 33687), (591, 32775), (855, 22655), (985, 19665), (1035, 18715), (1311, 14775), (1425, 13593), (1725, 11229), (1773, 10925), (2185, 8865), (2955, 6555), (3743, 5175), (3933, 4925), (4275, 4531)]