1638174075

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 2913146880

約数和(自身を除く): 1274972805

約数列:

[1, 3, 5, 15, 25, 31, 37, 75, 93, 111, 137, 139, 155, 185, 411, 417, 465, 555, 685, 695, 775, 925, 1147, 2055, 2085, 2325, 2775, 3425, 3441, 3475, 4247, 4309, 5069, 5143, 5735, 10275, 10425, 12741, 12927, 15207, 15429, 17205, 19043, 21235, 21545, 25345, 25715, 28675, 57129, 63705, 64635, 76035, 77145, 86025, 95215, 106175, 107725, 126725, 128575, 157139, 159433, 285645, 318525, 323175, 380175, 385725, 471417, 476075, 478299, 590333, 704591, 785695, 797165, 1428225, 1770999, 2113773, 2357085, 2391495, 2951665, 3522955, 3928475, 3985825, 8854995, 10568865, 11785425, 11957475, 14758325, 17614775, 21842321, 44274975, 52844325, 65526963, 109211605, 327634815, 546058025, 1638174075]

約数ペア:

[(1, 1638174075), (3, 546058025), (5, 327634815), (15, 109211605), (25, 65526963), (31, 52844325), (37, 44274975), (75, 21842321), (93, 17614775), (111, 14758325), (137, 11957475), (139, 11785425), (155, 10568865), (185, 8854995), (411, 3985825), (417, 3928475), (465, 3522955), (555, 2951665), (685, 2391495), (695, 2357085), (775, 2113773), (925, 1770999), (1147, 1428225), (2055, 797165), (2085, 785695), (2325, 704591), (2775, 590333), (3425, 478299), (3441, 476075), (3475, 471417), (4247, 385725), (4309, 380175), (5069, 323175), (5143, 318525), (5735, 285645), (10275, 159433), (10425, 157139), (12741, 128575), (12927, 126725), (15207, 107725), (15429, 106175), (17205, 95215), (19043, 86025), (21235, 77145), (21545, 76035), (25345, 64635), (25715, 63705), (28675, 57129)]