87991280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:179

約数の個数: 160

約数和(自身を含む): 238943040

約数和(自身を除く): 150951760

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 61, 65, 73, 76, 80, 95, 104, 122, 130, 146, 152, 190, 208, 244, 247, 260, 292, 304, 305, 365, 380, 488, 494, 520, 584, 610, 730, 760, 793, 949, 976, 988, 1040, 1159, 1168, 1220, 1235, 1387, 1460, 1520, 1586, 1898, 1976, 2318, 2440, 2470, 2774, 2920, 3172, 3796, 3952, 3965, 4453, 4636, 4745, 4880, 4940, 5548, 5795, 5840, 6344, 6935, 7592, 7930, 8906, 9272, 9490, 9880, 11096, 11590, 12688, 13870, 15067, 15184, 15860, 17812, 18031, 18544, 18980, 19760, 22192, 22265, 23180, 27740, 30134, 31720, 35624, 36062, 37960, 44530, 46360, 55480, 57889, 60268, 63440, 71248, 72124, 75335, 75920, 84607, 89060, 90155, 92720, 110960, 115778, 120536, 144248, 150670, 169214, 178120, 180310, 231556, 241072, 288496, 289445, 301340, 338428, 356240, 360620, 423035, 463112, 578890, 602680, 676856, 721240, 846070, 926224, 1099891, 1157780, 1205360, 1353712, 1442480, 1692140, 2199782, 2315560, 3384280, 4399564, 4631120, 5499455, 6768560, 8799128, 10998910, 17598256, 21997820, 43995640, 87991280]

約数ペア:

[(1, 87991280), (2, 43995640), (4, 21997820), (5, 17598256), (8, 10998910), (10, 8799128), (13, 6768560), (16, 5499455), (19, 4631120), (20, 4399564), (26, 3384280), (38, 2315560), (40, 2199782), (52, 1692140), (61, 1442480), (65, 1353712), (73, 1205360), (76, 1157780), (80, 1099891), (95, 926224), (104, 846070), (122, 721240), (130, 676856), (146, 602680), (152, 578890), (190, 463112), (208, 423035), (244, 360620), (247, 356240), (260, 338428), (292, 301340), (304, 289445), (305, 288496), (365, 241072), (380, 231556), (488, 180310), (494, 178120), (520, 169214), (584, 150670), (610, 144248), (730, 120536), (760, 115778), (793, 110960), (949, 92720), (976, 90155), (988, 89060), (1040, 84607), (1159, 75920), (1168, 75335), (1220, 72124), (1235, 71248), (1387, 63440), (1460, 60268), (1520, 57889), (1586, 55480), (1898, 46360), (1976, 44530), (2318, 37960), (2440, 36062), (2470, 35624), (2774, 31720), (2920, 30134), (3172, 27740), (3796, 23180), (3952, 22265), (3965, 22192), (4453, 19760), (4636, 18980), (4745, 18544), (4880, 18031), (4940, 17812), (5548, 15860), (5795, 15184), (5840, 15067), (6344, 13870), (6935, 12688), (7592, 11590), (7930, 11096), (8906, 9880), (9272, 9490)]