260065936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 559686400

約数和(自身を除く): 299620464

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 61, 103, 104, 122, 199, 206, 208, 244, 398, 412, 488, 793, 796, 824, 976, 1339, 1586, 1592, 1648, 2587, 2678, 3172, 3184, 5174, 5356, 6283, 6344, 10348, 10712, 12139, 12566, 12688, 20497, 20696, 21424, 24278, 25132, 40994, 41392, 48556, 50264, 81679, 81988, 97112, 100528, 157807, 163358, 163976, 194224, 266461, 315614, 326716, 327952, 532922, 631228, 653432, 1065844, 1250317, 1262456, 1306864, 2131688, 2500634, 2524912, 4263376, 5001268, 10002536, 16254121, 20005072, 32508242, 65016484, 130032968, 260065936]

約数ペア:

[(1, 260065936), (2, 130032968), (4, 65016484), (8, 32508242), (13, 20005072), (16, 16254121), (26, 10002536), (52, 5001268), (61, 4263376), (103, 2524912), (104, 2500634), (122, 2131688), (199, 1306864), (206, 1262456), (208, 1250317), (244, 1065844), (398, 653432), (412, 631228), (488, 532922), (793, 327952), (796, 326716), (824, 315614), (976, 266461), (1339, 194224), (1586, 163976), (1592, 163358), (1648, 157807), (2587, 100528), (2678, 97112), (3172, 81988), (3184, 81679), (5174, 50264), (5356, 48556), (6283, 41392), (6344, 40994), (10348, 25132), (10712, 24278), (12139, 21424), (12566, 20696), (12688, 20497)]