28555320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 89994240

約数和(自身を除く): 61438920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 47, 60, 61, 83, 94, 120, 122, 141, 166, 183, 188, 235, 244, 249, 282, 305, 332, 366, 376, 415, 470, 488, 498, 564, 610, 664, 705, 732, 830, 915, 940, 996, 1128, 1220, 1245, 1410, 1464, 1660, 1830, 1880, 1992, 2440, 2490, 2820, 2867, 3320, 3660, 3901, 4980, 5063, 5640, 5734, 7320, 7802, 8601, 9960, 10126, 11468, 11703, 14335, 15189, 15604, 17202, 19505, 20252, 22936, 23406, 25315, 28670, 30378, 31208, 34404, 39010, 40504, 43005, 46812, 50630, 57340, 58515, 60756, 68808, 75945, 78020, 86010, 93624, 101260, 114680, 117030, 121512, 151890, 156040, 172020, 202520, 234060, 237961, 303780, 344040, 468120, 475922, 607560, 713883, 951844, 1189805, 1427766, 1903688, 2379610, 2855532, 3569415, 4759220, 5711064, 7138830, 9518440, 14277660, 28555320]

約数ペア:

[(1, 28555320), (2, 14277660), (3, 9518440), (4, 7138830), (5, 5711064), (6, 4759220), (8, 3569415), (10, 2855532), (12, 2379610), (15, 1903688), (20, 1427766), (24, 1189805), (30, 951844), (40, 713883), (47, 607560), (60, 475922), (61, 468120), (83, 344040), (94, 303780), (120, 237961), (122, 234060), (141, 202520), (166, 172020), (183, 156040), (188, 151890), (235, 121512), (244, 117030), (249, 114680), (282, 101260), (305, 93624), (332, 86010), (366, 78020), (376, 75945), (415, 68808), (470, 60756), (488, 58515), (498, 57340), (564, 50630), (610, 46812), (664, 43005), (705, 40504), (732, 39010), (830, 34404), (915, 31208), (940, 30378), (996, 28670), (1128, 25315), (1220, 23406), (1245, 22936), (1410, 20252), (1464, 19505), (1660, 17202), (1830, 15604), (1880, 15189), (1992, 14335), (2440, 11703), (2490, 11468), (2820, 10126), (2867, 9960), (3320, 8601), (3660, 7802), (3901, 7320), (4980, 5734), (5063, 5640)]