18617872

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{673}}^1$

素因数の和:720

約数の個数: 80

約数和(自身を含む): 46802560

約数和(自身を除く): 28184688

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 673, 728, 988, 1064, 1346, 1456, 1729, 1976, 2128, 2692, 3458, 3952, 4711, 5384, 6916, 8749, 9422, 10768, 12787, 13832, 17498, 18844, 25574, 27664, 34996, 37688, 51148, 61243, 69992, 75376, 89509, 102296, 122486, 139984, 166231, 179018, 204592, 244972, 332462, 358036, 489944, 664924, 716072, 979888, 1163617, 1329848, 1432144, 2327234, 2659696, 4654468, 9308936, 18617872]

約数ペア:

[(1, 18617872), (2, 9308936), (4, 4654468), (7, 2659696), (8, 2327234), (13, 1432144), (14, 1329848), (16, 1163617), (19, 979888), (26, 716072), (28, 664924), (38, 489944), (52, 358036), (56, 332462), (76, 244972), (91, 204592), (104, 179018), (112, 166231), (133, 139984), (152, 122486), (182, 102296), (208, 89509), (247, 75376), (266, 69992), (304, 61243), (364, 51148), (494, 37688), (532, 34996), (673, 27664), (728, 25574), (988, 18844), (1064, 17498), (1346, 13832), (1456, 12787), (1729, 10768), (1976, 9422), (2128, 8749), (2692, 6916), (3458, 5384), (3952, 4711)]