281491320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{1993}}^1$

素因数の和:2125

約数の個数: 128

約数和(自身を含む): 930320640

約数和(自身を除く): 648829320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 107, 110, 120, 132, 165, 214, 220, 264, 321, 330, 428, 440, 535, 642, 660, 856, 1070, 1177, 1284, 1320, 1605, 1993, 2140, 2354, 2568, 3210, 3531, 3986, 4280, 4708, 5885, 5979, 6420, 7062, 7972, 9416, 9965, 11770, 11958, 12840, 14124, 15944, 17655, 19930, 21923, 23540, 23916, 28248, 29895, 35310, 39860, 43846, 47080, 47832, 59790, 65769, 70620, 79720, 87692, 109615, 119580, 131538, 141240, 175384, 213251, 219230, 239160, 263076, 328845, 426502, 438460, 526152, 639753, 657690, 853004, 876920, 1066255, 1279506, 1315380, 1706008, 2132510, 2345761, 2559012, 2630760, 3198765, 4265020, 4691522, 5118024, 6397530, 7037283, 8530040, 9383044, 11728805, 12795060, 14074566, 18766088, 23457610, 25590120, 28149132, 35186415, 46915220, 56298264, 70372830, 93830440, 140745660, 281491320]

約数ペア:

[(1, 281491320), (2, 140745660), (3, 93830440), (4, 70372830), (5, 56298264), (6, 46915220), (8, 35186415), (10, 28149132), (11, 25590120), (12, 23457610), (15, 18766088), (20, 14074566), (22, 12795060), (24, 11728805), (30, 9383044), (33, 8530040), (40, 7037283), (44, 6397530), (55, 5118024), (60, 4691522), (66, 4265020), (88, 3198765), (107, 2630760), (110, 2559012), (120, 2345761), (132, 2132510), (165, 1706008), (214, 1315380), (220, 1279506), (264, 1066255), (321, 876920), (330, 853004), (428, 657690), (440, 639753), (535, 526152), (642, 438460), (660, 426502), (856, 328845), (1070, 263076), (1177, 239160), (1284, 219230), (1320, 213251), (1605, 175384), (1993, 141240), (2140, 131538), (2354, 119580), (2568, 109615), (3210, 87692), (3531, 79720), (3986, 70620), (4280, 65769), (4708, 59790), (5885, 47832), (5979, 47080), (6420, 43846), (7062, 39860), (7972, 35310), (9416, 29895), (9965, 28248), (11770, 23916), (11958, 23540), (12840, 21923), (14124, 19930), (15944, 17655)]