81765075

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1171}}^1$

素因数の和:1217

約数の個数: 72

約数和(自身を含む): 165673920

約数和(自身を除く): 83908845

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 49, 57, 75, 95, 105, 133, 147, 175, 245, 285, 399, 475, 525, 665, 735, 931, 1171, 1225, 1425, 1995, 2793, 3325, 3513, 3675, 4655, 5855, 8197, 9975, 13965, 17565, 22249, 23275, 24591, 29275, 40985, 57379, 66747, 69825, 87825, 111245, 122955, 155743, 172137, 204925, 286895, 333735, 467229, 556225, 614775, 778715, 860685, 1090201, 1434475, 1668675, 2336145, 3270603, 3893575, 4303425, 5451005, 11680725, 16353015, 27255025, 81765075]

約数ペア:

[(1, 81765075), (3, 27255025), (5, 16353015), (7, 11680725), (15, 5451005), (19, 4303425), (21, 3893575), (25, 3270603), (35, 2336145), (49, 1668675), (57, 1434475), (75, 1090201), (95, 860685), (105, 778715), (133, 614775), (147, 556225), (175, 467229), (245, 333735), (285, 286895), (399, 204925), (475, 172137), (525, 155743), (665, 122955), (735, 111245), (931, 87825), (1171, 69825), (1225, 66747), (1425, 57379), (1995, 40985), (2793, 29275), (3325, 24591), (3513, 23275), (3675, 22249), (4655, 17565), (5855, 13965), (8197, 9975)]