81545872

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:584

約数の個数: 80

約数和(自身を含む): 182131200

約数和(自身を除く): 100585328

約数列:

[1, 2, 4, 8, 16, 17, 19, 31, 34, 38, 62, 68, 76, 124, 136, 152, 248, 272, 304, 323, 496, 509, 527, 589, 646, 1018, 1054, 1178, 1292, 2036, 2108, 2356, 2584, 4072, 4216, 4712, 5168, 8144, 8432, 8653, 9424, 9671, 10013, 15779, 17306, 19342, 20026, 31558, 34612, 38684, 40052, 63116, 69224, 77368, 80104, 126232, 138448, 154736, 160208, 164407, 252464, 268243, 299801, 328814, 536486, 599602, 657628, 1072972, 1199204, 1315256, 2145944, 2398408, 2630512, 4291888, 4796816, 5096617, 10193234, 20386468, 40772936, 81545872]

約数ペア:

[(1, 81545872), (2, 40772936), (4, 20386468), (8, 10193234), (16, 5096617), (17, 4796816), (19, 4291888), (31, 2630512), (34, 2398408), (38, 2145944), (62, 1315256), (68, 1199204), (76, 1072972), (124, 657628), (136, 599602), (152, 536486), (248, 328814), (272, 299801), (304, 268243), (323, 252464), (496, 164407), (509, 160208), (527, 154736), (589, 138448), (646, 126232), (1018, 80104), (1054, 77368), (1178, 69224), (1292, 63116), (2036, 40052), (2108, 38684), (2356, 34612), (2584, 31558), (4072, 20026), (4216, 19342), (4712, 17306), (5168, 15779), (8144, 10013), (8432, 9671), (8653, 9424)]