28735980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1$

素因数の和:328

約数の個数: 192

約数和(自身を含む): 104616960

約数和(自身を除く): 75880980

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 19, 20, 21, 26, 28, 30, 35, 38, 39, 42, 52, 57, 60, 65, 70, 76, 78, 84, 91, 95, 105, 114, 130, 133, 140, 156, 182, 190, 195, 210, 228, 247, 260, 266, 273, 277, 285, 364, 380, 390, 399, 420, 455, 494, 532, 546, 554, 570, 665, 741, 780, 798, 831, 910, 988, 1092, 1108, 1140, 1235, 1330, 1365, 1385, 1482, 1596, 1662, 1729, 1820, 1939, 1995, 2470, 2660, 2730, 2770, 2964, 3324, 3458, 3601, 3705, 3878, 3990, 4155, 4940, 5187, 5263, 5460, 5540, 5817, 6916, 7202, 7410, 7756, 7980, 8310, 8645, 9695, 10374, 10526, 10803, 11634, 14404, 14820, 15789, 16620, 17290, 18005, 19390, 20748, 21052, 21606, 23268, 25207, 25935, 26315, 29085, 31578, 34580, 36010, 36841, 38780, 43212, 50414, 51870, 52630, 54015, 58170, 63156, 68419, 72020, 73682, 75621, 78945, 100828, 103740, 105260, 108030, 110523, 116340, 126035, 136838, 147364, 151242, 157890, 184205, 205257, 216060, 221046, 252070, 273676, 302484, 315780, 342095, 368410, 378105, 410514, 442092, 478933, 504140, 552615, 684190, 736820, 756210, 821028, 957866, 1026285, 1105230, 1368380, 1436799, 1512420, 1915732, 2052570, 2210460, 2394665, 2873598, 4105140, 4789330, 5747196, 7183995, 9578660, 14367990, 28735980]

約数ペア:

[(1, 28735980), (2, 14367990), (3, 9578660), (4, 7183995), (5, 5747196), (6, 4789330), (7, 4105140), (10, 2873598), (12, 2394665), (13, 2210460), (14, 2052570), (15, 1915732), (19, 1512420), (20, 1436799), (21, 1368380), (26, 1105230), (28, 1026285), (30, 957866), (35, 821028), (38, 756210), (39, 736820), (42, 684190), (52, 552615), (57, 504140), (60, 478933), (65, 442092), (70, 410514), (76, 378105), (78, 368410), (84, 342095), (91, 315780), (95, 302484), (105, 273676), (114, 252070), (130, 221046), (133, 216060), (140, 205257), (156, 184205), (182, 157890), (190, 151242), (195, 147364), (210, 136838), (228, 126035), (247, 116340), (260, 110523), (266, 108030), (273, 105260), (277, 103740), (285, 100828), (364, 78945), (380, 75621), (390, 73682), (399, 72020), (420, 68419), (455, 63156), (494, 58170), (532, 54015), (546, 52630), (554, 51870), (570, 50414), (665, 43212), (741, 38780), (780, 36841), (798, 36010), (831, 34580), (910, 31578), (988, 29085), (1092, 26315), (1108, 25935), (1140, 25207), (1235, 23268), (1330, 21606), (1365, 21052), (1385, 20748), (1482, 19390), (1596, 18005), (1662, 17290), (1729, 16620), (1820, 15789), (1939, 14820), (1995, 14404), (2470, 11634), (2660, 10803), (2730, 10526), (2770, 10374), (2964, 9695), (3324, 8645), (3458, 8310), (3601, 7980), (3705, 7756), (3878, 7410), (3990, 7202), (4155, 6916), (4940, 5817), (5187, 5540), (5263, 5460)]