209551836

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{61}}^2$

素因数の和:180

約数の個数: 108

約数和(自身を含む): 564998616

約数和(自身を除く): 355446780

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 61, 76, 78, 114, 122, 156, 183, 228, 244, 247, 361, 366, 494, 722, 732, 741, 793, 988, 1083, 1159, 1444, 1482, 1586, 2166, 2318, 2379, 2964, 3172, 3477, 3721, 4332, 4636, 4693, 4758, 6954, 7442, 9386, 9516, 11163, 13908, 14079, 14884, 15067, 18772, 22021, 22326, 28158, 30134, 44042, 44652, 45201, 48373, 56316, 60268, 66063, 70699, 88084, 90402, 96746, 132126, 141398, 145119, 180804, 193492, 212097, 264252, 282796, 286273, 290238, 424194, 572546, 580476, 848388, 858819, 919087, 1145092, 1343281, 1717638, 1838174, 2686562, 2757261, 3435276, 3676348, 4029843, 5373124, 5514522, 8059686, 11029044, 16119372, 17462653, 34925306, 52387959, 69850612, 104775918, 209551836]

約数ペア:

[(1, 209551836), (2, 104775918), (3, 69850612), (4, 52387959), (6, 34925306), (12, 17462653), (13, 16119372), (19, 11029044), (26, 8059686), (38, 5514522), (39, 5373124), (52, 4029843), (57, 3676348), (61, 3435276), (76, 2757261), (78, 2686562), (114, 1838174), (122, 1717638), (156, 1343281), (183, 1145092), (228, 919087), (244, 858819), (247, 848388), (361, 580476), (366, 572546), (494, 424194), (722, 290238), (732, 286273), (741, 282796), (793, 264252), (988, 212097), (1083, 193492), (1159, 180804), (1444, 145119), (1482, 141398), (1586, 132126), (2166, 96746), (2318, 90402), (2379, 88084), (2964, 70699), (3172, 66063), (3477, 60268), (3721, 56316), (4332, 48373), (4636, 45201), (4693, 44652), (4758, 44042), (6954, 30134), (7442, 28158), (9386, 22326), (9516, 22021), (11163, 18772), (13908, 15067), (14079, 14884)]