208917240

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3407}}^1$

素因数の和:3501

約数の個数: 128

約数和(自身を含む): 726312960

約数和(自身を除く): 517395720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 73, 84, 105, 120, 140, 146, 168, 210, 219, 280, 292, 365, 420, 438, 511, 584, 730, 840, 876, 1022, 1095, 1460, 1533, 1752, 2044, 2190, 2555, 2920, 3066, 3407, 4088, 4380, 5110, 6132, 6814, 7665, 8760, 10220, 10221, 12264, 13628, 15330, 17035, 20440, 20442, 23849, 27256, 30660, 34070, 40884, 47698, 51105, 61320, 68140, 71547, 81768, 95396, 102210, 119245, 136280, 143094, 190792, 204420, 238490, 248711, 286188, 357735, 408840, 476980, 497422, 572376, 715470, 746133, 953960, 994844, 1243555, 1430940, 1492266, 1740977, 1989688, 2487110, 2861880, 2984532, 3481954, 3730665, 4974220, 5222931, 5969064, 6963908, 7461330, 8704885, 9948440, 10445862, 13927816, 14922660, 17409770, 20891724, 26114655, 29845320, 34819540, 41783448, 52229310, 69639080, 104458620, 208917240]

約数ペア:

[(1, 208917240), (2, 104458620), (3, 69639080), (4, 52229310), (5, 41783448), (6, 34819540), (7, 29845320), (8, 26114655), (10, 20891724), (12, 17409770), (14, 14922660), (15, 13927816), (20, 10445862), (21, 9948440), (24, 8704885), (28, 7461330), (30, 6963908), (35, 5969064), (40, 5222931), (42, 4974220), (56, 3730665), (60, 3481954), (70, 2984532), (73, 2861880), (84, 2487110), (105, 1989688), (120, 1740977), (140, 1492266), (146, 1430940), (168, 1243555), (210, 994844), (219, 953960), (280, 746133), (292, 715470), (365, 572376), (420, 497422), (438, 476980), (511, 408840), (584, 357735), (730, 286188), (840, 248711), (876, 238490), (1022, 204420), (1095, 190792), (1460, 143094), (1533, 136280), (1752, 119245), (2044, 102210), (2190, 95396), (2555, 81768), (2920, 71547), (3066, 68140), (3407, 61320), (4088, 51105), (4380, 47698), (5110, 40884), (6132, 34070), (6814, 30660), (7665, 27256), (8760, 23849), (10220, 20442), (10221, 20440), (12264, 17035), (13628, 15330)]