19210425

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 96

約数和(自身を含む): 38747520

約数和(自身を除く): 19537095

約数列:

[1, 3, 5, 13, 15, 17, 19, 25, 39, 51, 57, 61, 65, 75, 85, 95, 183, 195, 221, 247, 255, 285, 305, 323, 325, 425, 475, 663, 741, 793, 915, 969, 975, 1037, 1105, 1159, 1235, 1275, 1425, 1525, 1615, 2379, 3111, 3315, 3477, 3705, 3965, 4199, 4575, 4845, 5185, 5525, 5795, 6175, 8075, 11895, 12597, 13481, 15067, 15555, 16575, 17385, 18525, 19703, 19825, 20995, 24225, 25925, 28975, 40443, 45201, 59109, 59475, 62985, 67405, 75335, 77775, 86925, 98515, 104975, 202215, 226005, 256139, 295545, 314925, 337025, 376675, 492575, 768417, 1011075, 1130025, 1280695, 1477725, 3842085, 6403475, 19210425]

約数ペア:

[(1, 19210425), (3, 6403475), (5, 3842085), (13, 1477725), (15, 1280695), (17, 1130025), (19, 1011075), (25, 768417), (39, 492575), (51, 376675), (57, 337025), (61, 314925), (65, 295545), (75, 256139), (85, 226005), (95, 202215), (183, 104975), (195, 98515), (221, 86925), (247, 77775), (255, 75335), (285, 67405), (305, 62985), (323, 59475), (325, 59109), (425, 45201), (475, 40443), (663, 28975), (741, 25925), (793, 24225), (915, 20995), (969, 19825), (975, 19703), (1037, 18525), (1105, 17385), (1159, 16575), (1235, 15555), (1275, 15067), (1425, 13481), (1525, 12597), (1615, 11895), (2379, 8075), (3111, 6175), (3315, 5795), (3477, 5525), (3705, 5185), (3965, 4845), (4199, 4575)]