78875745

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 145824000

約数和(自身を除く): 66948255

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 61, 65, 95, 183, 195, 247, 285, 305, 349, 741, 793, 915, 1047, 1159, 1235, 1745, 2379, 3477, 3705, 3965, 4537, 5235, 5795, 6631, 11895, 13611, 15067, 17385, 19893, 21289, 22685, 33155, 45201, 63867, 68055, 75335, 86203, 99465, 106445, 226005, 258609, 276757, 319335, 404491, 431015, 830271, 1213473, 1293045, 1383785, 2022455, 4151355, 5258383, 6067365, 15775149, 26291915, 78875745]

約数ペア:

[(1, 78875745), (3, 26291915), (5, 15775149), (13, 6067365), (15, 5258383), (19, 4151355), (39, 2022455), (57, 1383785), (61, 1293045), (65, 1213473), (95, 830271), (183, 431015), (195, 404491), (247, 319335), (285, 276757), (305, 258609), (349, 226005), (741, 106445), (793, 99465), (915, 86203), (1047, 75335), (1159, 68055), (1235, 63867), (1745, 45201), (2379, 33155), (3477, 22685), (3705, 21289), (3965, 19893), (4537, 17385), (5235, 15067), (5795, 13611), (6631, 11895)]