27780375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{557}}^1$

素因数の和:601

約数の個数: 64

約数和(自身を含む): 55710720

約数和(自身を除く): 27930345

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 57, 75, 95, 105, 125, 133, 175, 285, 375, 399, 475, 525, 557, 665, 875, 1425, 1671, 1995, 2375, 2625, 2785, 3325, 3899, 7125, 8355, 9975, 10583, 11697, 13925, 16625, 19495, 31749, 41775, 49875, 52915, 58485, 69625, 74081, 97475, 158745, 208875, 222243, 264575, 292425, 370405, 487375, 793725, 1111215, 1322875, 1462125, 1852025, 3968625, 5556075, 9260125, 27780375]

約数ペア:

[(1, 27780375), (3, 9260125), (5, 5556075), (7, 3968625), (15, 1852025), (19, 1462125), (21, 1322875), (25, 1111215), (35, 793725), (57, 487375), (75, 370405), (95, 292425), (105, 264575), (125, 222243), (133, 208875), (175, 158745), (285, 97475), (375, 74081), (399, 69625), (475, 58485), (525, 52915), (557, 49875), (665, 41775), (875, 31749), (1425, 19495), (1671, 16625), (1995, 13925), (2375, 11697), (2625, 10583), (2785, 9975), (3325, 8355), (3899, 7125)]