18218996985

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{18457}}^1$

素因数の和:18575

約数の個数: 96

約数和(自身を含む): 36360783360

約数和(自身を除く): 18141786375

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 79, 85, 105, 119, 147, 237, 245, 255, 357, 395, 553, 595, 735, 833, 1185, 1343, 1659, 1785, 2499, 2765, 3871, 4029, 4165, 6715, 8295, 9401, 11613, 12495, 18457, 19355, 20145, 28203, 47005, 55371, 58065, 65807, 92285, 129199, 141015, 197421, 276855, 313769, 329035, 387597, 645995, 904393, 941307, 987105, 1458103, 1568845, 1937985, 2196383, 2713179, 4374309, 4521965, 4706535, 6589149, 7290515, 10206721, 10981915, 13565895, 15374681, 21871545, 24787751, 30620163, 32945745, 46124043, 51033605, 71447047, 74363253, 76873405, 123938755, 153100815, 173514257, 214341141, 230620215, 357235235, 371816265, 520542771, 867571285, 1071705705, 1214599799, 2602713855, 3643799397, 6072998995, 18218996985]

約数ペア:

[(1, 18218996985), (3, 6072998995), (5, 3643799397), (7, 2602713855), (15, 1214599799), (17, 1071705705), (21, 867571285), (35, 520542771), (49, 371816265), (51, 357235235), (79, 230620215), (85, 214341141), (105, 173514257), (119, 153100815), (147, 123938755), (237, 76873405), (245, 74363253), (255, 71447047), (357, 51033605), (395, 46124043), (553, 32945745), (595, 30620163), (735, 24787751), (833, 21871545), (1185, 15374681), (1343, 13565895), (1659, 10981915), (1785, 10206721), (2499, 7290515), (2765, 6589149), (3871, 4706535), (4029, 4521965), (4165, 4374309), (6715, 2713179), (8295, 2196383), (9401, 1937985), (11613, 1568845), (12495, 1458103), (18457, 987105), (19355, 941307), (20145, 904393), (28203, 645995), (47005, 387597), (55371, 329035), (58065, 313769), (65807, 276855), (92285, 197421), (129199, 141015)]