28019984

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1511}}^1$

素因数の和:1599

約数の個数: 40

約数和(自身を含む): 58121280

約数和(自身を除く): 30101296

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1159, 1511, 2318, 3022, 4636, 6044, 9272, 12088, 18544, 24176, 28709, 57418, 92171, 114836, 184342, 229672, 368684, 459344, 737368, 1474736, 1751249, 3502498, 7004996, 14009992, 28019984]

約数ペア:

[(1, 28019984), (2, 14009992), (4, 7004996), (8, 3502498), (16, 1751249), (19, 1474736), (38, 737368), (61, 459344), (76, 368684), (122, 229672), (152, 184342), (244, 114836), (304, 92171), (488, 57418), (976, 28709), (1159, 24176), (1511, 18544), (2318, 12088), (3022, 9272), (4636, 6044)]