21652100080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{409}}^1\times {\mathrm{467}}^1$

素因数の和:1011

約数の個数: 160

約数和(自身を含む): 54962107200

約数和(自身を除く): 33310007120

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 208, 218, 260, 409, 436, 467, 520, 545, 818, 872, 934, 1040, 1090, 1417, 1636, 1744, 1868, 2045, 2180, 2335, 2834, 3272, 3736, 4090, 4360, 4670, 5317, 5668, 6071, 6544, 7085, 7472, 8180, 8720, 9340, 10634, 11336, 12142, 14170, 16360, 18680, 21268, 22672, 24284, 26585, 28340, 30355, 32720, 37360, 42536, 44581, 48568, 50903, 53170, 56680, 60710, 85072, 89162, 97136, 101806, 106340, 113360, 121420, 178324, 191003, 203612, 212680, 222905, 242840, 254515, 356648, 382006, 407224, 425360, 445810, 485680, 509030, 579553, 661739, 713296, 764012, 814448, 891620, 955015, 1018060, 1159106, 1323478, 1528024, 1783240, 1910030, 2036120, 2318212, 2483039, 2646956, 2897765, 3056048, 3308695, 3566480, 3820060, 4072240, 4636424, 4966078, 5293912, 5795530, 6617390, 7640120, 9272848, 9932156, 10587824, 11591060, 12415195, 13234780, 15280240, 19864312, 20819327, 23182120, 24830390, 26469560, 39728624, 41638654, 46364240, 49660780, 52939120, 83277308, 99321560, 104096635, 166554616, 198643120, 208193270, 270651251, 333109232, 416386540, 541302502, 832773080, 1082605004, 1353256255, 1665546160, 2165210008, 2706512510, 4330420016, 5413025020, 10826050040, 21652100080]

約数ペア:

[(1, 21652100080), (2, 10826050040), (4, 5413025020), (5, 4330420016), (8, 2706512510), (10, 2165210008), (13, 1665546160), (16, 1353256255), (20, 1082605004), (26, 832773080), (40, 541302502), (52, 416386540), (65, 333109232), (80, 270651251), (104, 208193270), (109, 198643120), (130, 166554616), (208, 104096635), (218, 99321560), (260, 83277308), (409, 52939120), (436, 49660780), (467, 46364240), (520, 41638654), (545, 39728624), (818, 26469560), (872, 24830390), (934, 23182120), (1040, 20819327), (1090, 19864312), (1417, 15280240), (1636, 13234780), (1744, 12415195), (1868, 11591060), (2045, 10587824), (2180, 9932156), (2335, 9272848), (2834, 7640120), (3272, 6617390), (3736, 5795530), (4090, 5293912), (4360, 4966078), (4670, 4636424), (5317, 4072240), (5668, 3820060), (6071, 3566480), (6544, 3308695), (7085, 3056048), (7472, 2897765), (8180, 2646956), (8720, 2483039), (9340, 2318212), (10634, 2036120), (11336, 1910030), (12142, 1783240), (14170, 1528024), (16360, 1323478), (18680, 1159106), (21268, 1018060), (22672, 955015), (24284, 891620), (26585, 814448), (28340, 764012), (30355, 713296), (32720, 661739), (37360, 579553), (42536, 509030), (44581, 485680), (48568, 445810), (50903, 425360), (53170, 407224), (56680, 382006), (60710, 356648), (85072, 254515), (89162, 242840), (97136, 222905), (101806, 212680), (106340, 203612), (113360, 191003), (121420, 178324)]