20128290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{101}}^1$

素因数の和:204

約数の個数: 128

約数和(自身を含む): 60867072

約数和(自身を除く): 40738782

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 73, 78, 91, 101, 105, 130, 146, 182, 195, 202, 210, 219, 273, 303, 365, 390, 438, 455, 505, 511, 546, 606, 707, 730, 910, 949, 1010, 1022, 1095, 1313, 1365, 1414, 1515, 1533, 1898, 2121, 2190, 2555, 2626, 2730, 2847, 3030, 3066, 3535, 3939, 4242, 4745, 5110, 5694, 6565, 6643, 7070, 7373, 7665, 7878, 9191, 9490, 10605, 13130, 13286, 14235, 14746, 15330, 18382, 19695, 19929, 21210, 22119, 27573, 28470, 33215, 36865, 39390, 39858, 44238, 45955, 51611, 55146, 66430, 73730, 91910, 95849, 99645, 103222, 110595, 137865, 154833, 191698, 199290, 221190, 258055, 275730, 287547, 309666, 479245, 516110, 575094, 670943, 774165, 958490, 1341886, 1437735, 1548330, 2012829, 2875470, 3354715, 4025658, 6709430, 10064145, 20128290]

約数ペア:

[(1, 20128290), (2, 10064145), (3, 6709430), (5, 4025658), (6, 3354715), (7, 2875470), (10, 2012829), (13, 1548330), (14, 1437735), (15, 1341886), (21, 958490), (26, 774165), (30, 670943), (35, 575094), (39, 516110), (42, 479245), (65, 309666), (70, 287547), (73, 275730), (78, 258055), (91, 221190), (101, 199290), (105, 191698), (130, 154833), (146, 137865), (182, 110595), (195, 103222), (202, 99645), (210, 95849), (219, 91910), (273, 73730), (303, 66430), (365, 55146), (390, 51611), (438, 45955), (455, 44238), (505, 39858), (511, 39390), (546, 36865), (606, 33215), (707, 28470), (730, 27573), (910, 22119), (949, 21210), (1010, 19929), (1022, 19695), (1095, 18382), (1313, 15330), (1365, 14746), (1414, 14235), (1515, 13286), (1533, 13130), (1898, 10605), (2121, 9490), (2190, 9191), (2555, 7878), (2626, 7665), (2730, 7373), (2847, 7070), (3030, 6643), (3066, 6565), (3535, 5694), (3939, 5110), (4242, 4745)]