646045088

素因数分解:

$2^5\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{1783}}^1$

素因数の和:1886

約数の個数: 72

約数和(自身を含む): 1398606048

約数和(自身を除く): 752560960

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 169, 208, 268, 338, 416, 536, 676, 871, 1072, 1352, 1742, 1783, 2144, 2704, 3484, 3566, 5408, 6968, 7132, 11323, 13936, 14264, 22646, 23179, 27872, 28528, 45292, 46358, 57056, 90584, 92716, 119461, 181168, 185432, 238922, 301327, 362336, 370864, 477844, 602654, 741728, 955688, 1205308, 1552993, 1911376, 2410616, 3105986, 3822752, 4821232, 6211972, 9642464, 12423944, 20188909, 24847888, 40377818, 49695776, 80755636, 161511272, 323022544, 646045088]

約数ペア:

[(1, 646045088), (2, 323022544), (4, 161511272), (8, 80755636), (13, 49695776), (16, 40377818), (26, 24847888), (32, 20188909), (52, 12423944), (67, 9642464), (104, 6211972), (134, 4821232), (169, 3822752), (208, 3105986), (268, 2410616), (338, 1911376), (416, 1552993), (536, 1205308), (676, 955688), (871, 741728), (1072, 602654), (1352, 477844), (1742, 370864), (1783, 362336), (2144, 301327), (2704, 238922), (3484, 185432), (3566, 181168), (5408, 119461), (6968, 92716), (7132, 90584), (11323, 57056), (13936, 46358), (14264, 45292), (22646, 28528), (23179, 27872)]