31681936

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{227}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 73620288

約数和(自身を除く): 41938352

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 61, 88, 104, 122, 143, 176, 208, 227, 244, 286, 454, 488, 572, 671, 793, 908, 976, 1144, 1342, 1586, 1816, 2288, 2497, 2684, 2951, 3172, 3632, 4994, 5368, 5902, 6344, 8723, 9988, 10736, 11804, 12688, 13847, 17446, 19976, 23608, 27694, 32461, 34892, 39952, 47216, 55388, 64922, 69784, 110776, 129844, 139568, 152317, 180011, 221552, 259688, 304634, 360022, 519376, 609268, 720044, 1218536, 1440088, 1980121, 2437072, 2880176, 3960242, 7920484, 15840968, 31681936]

約数ペア:

[(1, 31681936), (2, 15840968), (4, 7920484), (8, 3960242), (11, 2880176), (13, 2437072), (16, 1980121), (22, 1440088), (26, 1218536), (44, 720044), (52, 609268), (61, 519376), (88, 360022), (104, 304634), (122, 259688), (143, 221552), (176, 180011), (208, 152317), (227, 139568), (244, 129844), (286, 110776), (454, 69784), (488, 64922), (572, 55388), (671, 47216), (793, 39952), (908, 34892), (976, 32461), (1144, 27694), (1342, 23608), (1586, 19976), (1816, 17446), (2288, 13847), (2497, 12688), (2684, 11804), (2951, 10736), (3172, 9988), (3632, 8723), (4994, 6344), (5368, 5902)]