291248356

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^2\times {\mathrm{53}}^2$

素因数の和:170

約数の個数: 81

約数和(自身を含む): 631712361

約数和(自身を除く): 340464005

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 53, 92, 98, 106, 161, 196, 212, 322, 371, 529, 644, 742, 1058, 1127, 1219, 1484, 2116, 2254, 2438, 2597, 2809, 3703, 4508, 4876, 5194, 5618, 7406, 8533, 10388, 11236, 14812, 17066, 19663, 25921, 28037, 34132, 39326, 51842, 56074, 59731, 64607, 78652, 103684, 112148, 119462, 129214, 137641, 196259, 238924, 258428, 275282, 392518, 452249, 550564, 785036, 904498, 1373813, 1485961, 1808996, 2747626, 2971922, 3165743, 5495252, 5943844, 6331486, 10401727, 12662972, 20803454, 41606908, 72812089, 145624178, 291248356]

約数ペア:

[(1, 291248356), (2, 145624178), (4, 72812089), (7, 41606908), (14, 20803454), (23, 12662972), (28, 10401727), (46, 6331486), (49, 5943844), (53, 5495252), (92, 3165743), (98, 2971922), (106, 2747626), (161, 1808996), (196, 1485961), (212, 1373813), (322, 904498), (371, 785036), (529, 550564), (644, 452249), (742, 392518), (1058, 275282), (1127, 258428), (1219, 238924), (1484, 196259), (2116, 137641), (2254, 129214), (2438, 119462), (2597, 112148), (2809, 103684), (3703, 78652), (4508, 64607), (4876, 59731), (5194, 56074), (5618, 51842), (7406, 39326), (8533, 34132), (10388, 28037), (11236, 25921), (14812, 19663)]