491428616

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:427

約数の個数: 128

約数和(自身を含む): 1172275200

約数和(自身を除く): 680846584

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 31, 38, 47, 56, 62, 76, 94, 124, 133, 152, 188, 217, 248, 266, 317, 329, 376, 434, 532, 589, 634, 658, 868, 893, 1064, 1178, 1268, 1316, 1457, 1736, 1786, 2219, 2356, 2536, 2632, 2914, 3572, 4123, 4438, 4712, 5828, 6023, 6251, 7144, 8246, 8876, 9827, 10199, 11656, 12046, 12502, 14899, 16492, 17752, 19654, 20398, 24092, 25004, 27683, 29798, 32984, 39308, 40796, 42161, 48184, 50008, 55366, 59596, 68789, 78616, 81592, 84322, 104293, 110732, 119192, 137578, 168644, 186713, 193781, 208586, 221464, 275156, 283081, 337288, 373426, 387562, 417172, 461869, 550312, 566162, 746852, 775124, 834344, 923738, 1132324, 1306991, 1493704, 1550248, 1847476, 1981567, 2264648, 2613982, 3233083, 3694952, 3963134, 5227964, 6466166, 7926268, 8775511, 10455928, 12932332, 15852536, 17551022, 25864664, 35102044, 61428577, 70204088, 122857154, 245714308, 491428616]

約数ペア:

[(1, 491428616), (2, 245714308), (4, 122857154), (7, 70204088), (8, 61428577), (14, 35102044), (19, 25864664), (28, 17551022), (31, 15852536), (38, 12932332), (47, 10455928), (56, 8775511), (62, 7926268), (76, 6466166), (94, 5227964), (124, 3963134), (133, 3694952), (152, 3233083), (188, 2613982), (217, 2264648), (248, 1981567), (266, 1847476), (317, 1550248), (329, 1493704), (376, 1306991), (434, 1132324), (532, 923738), (589, 834344), (634, 775124), (658, 746852), (868, 566162), (893, 550312), (1064, 461869), (1178, 417172), (1268, 387562), (1316, 373426), (1457, 337288), (1736, 283081), (1786, 275156), (2219, 221464), (2356, 208586), (2536, 193781), (2632, 186713), (2914, 168644), (3572, 137578), (4123, 119192), (4438, 110732), (4712, 104293), (5828, 84322), (6023, 81592), (6251, 78616), (7144, 68789), (8246, 59596), (8876, 55366), (9827, 50008), (10199, 48184), (11656, 42161), (12046, 40796), (12502, 39308), (14899, 32984), (16492, 29798), (17752, 27683), (19654, 25004), (20398, 24092)]