20161958452

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{11399}}^1$

素因数の和:11513

約数の個数: 72

約数和(自身を含む): 40420296000

約数和(自身を除く): 20258337548

約数列:

[1, 2, 4, 17, 19, 34, 37, 38, 68, 74, 76, 148, 323, 629, 646, 703, 1258, 1292, 1369, 1406, 2516, 2738, 2812, 5476, 11399, 11951, 22798, 23273, 23902, 26011, 45596, 46546, 47804, 52022, 93092, 104044, 193783, 216581, 387566, 421763, 433162, 442187, 775132, 843526, 866324, 884374, 1687052, 1768748, 3681877, 7169971, 7363754, 8013497, 14339942, 14727508, 15605231, 16026994, 28679884, 31210462, 32053988, 62420924, 136229449, 265288927, 272458898, 296499389, 530577854, 544917796, 592998778, 1061155708, 1185997556, 5040489613, 10080979226, 20161958452]

約数ペア:

[(1, 20161958452), (2, 10080979226), (4, 5040489613), (17, 1185997556), (19, 1061155708), (34, 592998778), (37, 544917796), (38, 530577854), (68, 296499389), (74, 272458898), (76, 265288927), (148, 136229449), (323, 62420924), (629, 32053988), (646, 31210462), (703, 28679884), (1258, 16026994), (1292, 15605231), (1369, 14727508), (1406, 14339942), (2516, 8013497), (2738, 7363754), (2812, 7169971), (5476, 3681877), (11399, 1768748), (11951, 1687052), (22798, 884374), (23273, 866324), (23902, 843526), (26011, 775132), (45596, 442187), (46546, 433162), (47804, 421763), (52022, 387566), (93092, 216581), (104044, 193783)]