11638640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1$

素因数の和:95

約数の個数: 120

約数和(自身を含む): 31747968

約数和(自身を除く): 20109328

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 104, 124, 130, 152, 155, 190, 208, 247, 248, 260, 304, 310, 361, 380, 403, 494, 496, 520, 589, 620, 722, 760, 806, 988, 1040, 1178, 1235, 1240, 1444, 1520, 1612, 1805, 1976, 2015, 2356, 2470, 2480, 2888, 2945, 3224, 3610, 3952, 4030, 4693, 4712, 4940, 5776, 5890, 6448, 7220, 7657, 8060, 9386, 9424, 9880, 11191, 11780, 14440, 15314, 16120, 18772, 19760, 22382, 23465, 23560, 28880, 30628, 32240, 37544, 38285, 44764, 46930, 47120, 55955, 61256, 75088, 76570, 89528, 93860, 111910, 122512, 145483, 153140, 179056, 187720, 223820, 290966, 306280, 375440, 447640, 581932, 612560, 727415, 895280, 1163864, 1454830, 2327728, 2909660, 5819320, 11638640]

約数ペア:

[(1, 11638640), (2, 5819320), (4, 2909660), (5, 2327728), (8, 1454830), (10, 1163864), (13, 895280), (16, 727415), (19, 612560), (20, 581932), (26, 447640), (31, 375440), (38, 306280), (40, 290966), (52, 223820), (62, 187720), (65, 179056), (76, 153140), (80, 145483), (95, 122512), (104, 111910), (124, 93860), (130, 89528), (152, 76570), (155, 75088), (190, 61256), (208, 55955), (247, 47120), (248, 46930), (260, 44764), (304, 38285), (310, 37544), (361, 32240), (380, 30628), (403, 28880), (494, 23560), (496, 23465), (520, 22382), (589, 19760), (620, 18772), (722, 16120), (760, 15314), (806, 14440), (988, 11780), (1040, 11191), (1178, 9880), (1235, 9424), (1240, 9386), (1444, 8060), (1520, 7657), (1612, 7220), (1805, 6448), (1976, 5890), (2015, 5776), (2356, 4940), (2470, 4712), (2480, 4693), (2888, 4030), (2945, 3952), (3224, 3610)]