395195440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{8387}}^1$

素因数の和:8450

約数の個数: 80

約数和(自身を含む): 998507520

約数和(自身を除く): 603312080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5890, 8387, 9424, 11780, 16774, 23560, 33548, 41935, 47120, 67096, 83870, 134192, 159353, 167740, 259997, 318706, 335480, 519994, 637412, 670960, 796765, 1039988, 1274824, 1299985, 1593530, 2079976, 2549648, 2599970, 3187060, 4159952, 4939943, 5199940, 6374120, 9879886, 10399880, 12748240, 19759772, 20799760, 24699715, 39519544, 49399430, 79039088, 98798860, 197597720, 395195440]

約数ペア:

[(1, 395195440), (2, 197597720), (4, 98798860), (5, 79039088), (8, 49399430), (10, 39519544), (16, 24699715), (19, 20799760), (20, 19759772), (31, 12748240), (38, 10399880), (40, 9879886), (62, 6374120), (76, 5199940), (80, 4939943), (95, 4159952), (124, 3187060), (152, 2599970), (155, 2549648), (190, 2079976), (248, 1593530), (304, 1299985), (310, 1274824), (380, 1039988), (496, 796765), (589, 670960), (620, 637412), (760, 519994), (1178, 335480), (1240, 318706), (1520, 259997), (2356, 167740), (2480, 159353), (2945, 134192), (4712, 83870), (5890, 67096), (8387, 47120), (9424, 41935), (11780, 33548), (16774, 23560)]