19951672

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1$

素因数の和:500

約数の個数: 64

約数和(自身を含む): 44352000

約数和(自身を除く): 24400328

約数列:

[1, 2, 4, 8, 13, 19, 23, 26, 38, 46, 52, 76, 92, 104, 152, 184, 247, 299, 437, 439, 494, 598, 874, 878, 988, 1196, 1748, 1756, 1976, 2392, 3496, 3512, 5681, 5707, 8341, 10097, 11362, 11414, 16682, 20194, 22724, 22828, 33364, 40388, 45448, 45656, 66728, 80776, 108433, 131261, 191843, 216866, 262522, 383686, 433732, 525044, 767372, 867464, 1050088, 1534744, 2493959, 4987918, 9975836, 19951672]

約数ペア:

[(1, 19951672), (2, 9975836), (4, 4987918), (8, 2493959), (13, 1534744), (19, 1050088), (23, 867464), (26, 767372), (38, 525044), (46, 433732), (52, 383686), (76, 262522), (92, 216866), (104, 191843), (152, 131261), (184, 108433), (247, 80776), (299, 66728), (437, 45656), (439, 45448), (494, 40388), (598, 33364), (874, 22828), (878, 22724), (988, 20194), (1196, 16682), (1748, 11414), (1756, 11362), (1976, 10097), (2392, 8341), (3496, 5707), (3512, 5681)]