31817780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 75586560

約数和(自身を除く): 43768780

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 37, 38, 62, 73, 74, 76, 95, 124, 146, 148, 155, 185, 190, 292, 310, 365, 370, 380, 589, 620, 703, 730, 740, 1147, 1178, 1387, 1406, 1460, 2263, 2294, 2356, 2701, 2774, 2812, 2945, 3515, 4526, 4588, 5402, 5548, 5735, 5890, 6935, 7030, 9052, 10804, 11315, 11470, 11780, 13505, 13870, 14060, 21793, 22630, 22940, 27010, 27740, 42997, 43586, 45260, 51319, 54020, 83731, 85994, 87172, 102638, 108965, 167462, 171988, 205276, 214985, 217930, 256595, 334924, 418655, 429970, 435860, 513190, 837310, 859940, 1026380, 1590889, 1674620, 3181778, 6363556, 7954445, 15908890, 31817780]

約数ペア:

[(1, 31817780), (2, 15908890), (4, 7954445), (5, 6363556), (10, 3181778), (19, 1674620), (20, 1590889), (31, 1026380), (37, 859940), (38, 837310), (62, 513190), (73, 435860), (74, 429970), (76, 418655), (95, 334924), (124, 256595), (146, 217930), (148, 214985), (155, 205276), (185, 171988), (190, 167462), (292, 108965), (310, 102638), (365, 87172), (370, 85994), (380, 83731), (589, 54020), (620, 51319), (703, 45260), (730, 43586), (740, 42997), (1147, 27740), (1178, 27010), (1387, 22940), (1406, 22630), (1460, 21793), (2263, 14060), (2294, 13870), (2356, 13505), (2701, 11780), (2774, 11470), (2812, 11315), (2945, 10804), (3515, 9052), (4526, 7030), (4588, 6935), (5402, 5890), (5548, 5735)]