1215382120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{3257}}^1$

素因数の和:3778

約数の個数: 64

約数和(自身を含む): 2885284800

約数和(自身を除く): 1669902680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 491, 760, 982, 1964, 2455, 3257, 3928, 4910, 6514, 9329, 9820, 13028, 16285, 18658, 19640, 26056, 32570, 37316, 46645, 61883, 65140, 74632, 93290, 123766, 130280, 186580, 247532, 309415, 373160, 495064, 618830, 1237660, 1599187, 2475320, 3198374, 6396748, 7995935, 12793496, 15991870, 30384553, 31983740, 60769106, 63967480, 121538212, 151922765, 243076424, 303845530, 607691060, 1215382120]

約数ペア:

[(1, 1215382120), (2, 607691060), (4, 303845530), (5, 243076424), (8, 151922765), (10, 121538212), (19, 63967480), (20, 60769106), (38, 31983740), (40, 30384553), (76, 15991870), (95, 12793496), (152, 7995935), (190, 6396748), (380, 3198374), (491, 2475320), (760, 1599187), (982, 1237660), (1964, 618830), (2455, 495064), (3257, 373160), (3928, 309415), (4910, 247532), (6514, 186580), (9329, 130280), (9820, 123766), (13028, 93290), (16285, 74632), (18658, 65140), (19640, 61883), (26056, 46645), (32570, 37316)]