18697120

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 96

約数和(自身を含む): 48580560

約数和(自身を除く): 29883440

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 89, 101, 104, 130, 160, 178, 202, 208, 260, 356, 404, 416, 445, 505, 520, 712, 808, 890, 1010, 1040, 1157, 1313, 1424, 1616, 1780, 2020, 2080, 2314, 2626, 2848, 3232, 3560, 4040, 4628, 5252, 5785, 6565, 7120, 8080, 8989, 9256, 10504, 11570, 13130, 14240, 16160, 17978, 18512, 21008, 23140, 26260, 35956, 37024, 42016, 44945, 46280, 52520, 71912, 89890, 92560, 105040, 116857, 143824, 179780, 185120, 210080, 233714, 287648, 359560, 467428, 584285, 719120, 934856, 1168570, 1438240, 1869712, 2337140, 3739424, 4674280, 9348560, 18697120]

約数ペア:

[(1, 18697120), (2, 9348560), (4, 4674280), (5, 3739424), (8, 2337140), (10, 1869712), (13, 1438240), (16, 1168570), (20, 934856), (26, 719120), (32, 584285), (40, 467428), (52, 359560), (65, 287648), (80, 233714), (89, 210080), (101, 185120), (104, 179780), (130, 143824), (160, 116857), (178, 105040), (202, 92560), (208, 89890), (260, 71912), (356, 52520), (404, 46280), (416, 44945), (445, 42016), (505, 37024), (520, 35956), (712, 26260), (808, 23140), (890, 21008), (1010, 18512), (1040, 17978), (1157, 16160), (1313, 14240), (1424, 13130), (1616, 11570), (1780, 10504), (2020, 9256), (2080, 8989), (2314, 8080), (2626, 7120), (2848, 6565), (3232, 5785), (3560, 5252), (4040, 4628)]