17980362625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{1721}}^1$

素因数の和:1891

約数の個数: 64

約数和(自身を含む): 24370295040

約数和(自身を除く): 6389932415

約数列:

[1, 5, 19, 25, 53, 83, 95, 125, 265, 415, 475, 1007, 1325, 1577, 1721, 2075, 2375, 4399, 5035, 6625, 7885, 8605, 10375, 21995, 25175, 32699, 39425, 43025, 83581, 91213, 109975, 125875, 142843, 163495, 197125, 215125, 417905, 456065, 549875, 714215, 817475, 1733047, 2089525, 2280325, 2714017, 3571075, 4087375, 7570679, 8665235, 10447625, 11401625, 13570085, 17855375, 37853395, 43326175, 67850425, 143842901, 189266975, 216630875, 339252125, 719214505, 946334875, 3596072525, 17980362625]

約数ペア:

[(1, 17980362625), (5, 3596072525), (19, 946334875), (25, 719214505), (53, 339252125), (83, 216630875), (95, 189266975), (125, 143842901), (265, 67850425), (415, 43326175), (475, 37853395), (1007, 17855375), (1325, 13570085), (1577, 11401625), (1721, 10447625), (2075, 8665235), (2375, 7570679), (4399, 4087375), (5035, 3571075), (6625, 2714017), (7885, 2280325), (8605, 2089525), (10375, 1733047), (21995, 817475), (25175, 714215), (32699, 549875), (39425, 456065), (43025, 417905), (83581, 215125), (91213, 197125), (109975, 163495), (125875, 142843)]