31507840

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1$

素因数の和:580

約数の個数: 128

約数和(自身を含む): 92877120

約数和(自身を除く): 61369280

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 541, 560, 640, 728, 832, 896, 910, 1040, 1082, 1120, 1456, 1664, 1820, 2080, 2164, 2240, 2705, 2912, 3640, 3787, 4160, 4328, 4480, 5410, 5824, 7033, 7280, 7574, 8320, 8656, 10820, 11648, 14066, 14560, 15148, 17312, 18935, 21640, 28132, 29120, 30296, 34624, 35165, 37870, 43280, 49231, 56264, 58240, 60592, 69248, 70330, 75740, 86560, 98462, 112528, 121184, 140660, 151480, 173120, 196924, 225056, 242368, 246155, 281320, 302960, 346240, 393848, 450112, 484736, 492310, 562640, 605920, 787696, 900224, 984620, 1125280, 1211840, 1575392, 1969240, 2250560, 2423680, 3150784, 3938480, 4501120, 6301568, 7876960, 15753920, 31507840]

約数ペア:

[(1, 31507840), (2, 15753920), (4, 7876960), (5, 6301568), (7, 4501120), (8, 3938480), (10, 3150784), (13, 2423680), (14, 2250560), (16, 1969240), (20, 1575392), (26, 1211840), (28, 1125280), (32, 984620), (35, 900224), (40, 787696), (52, 605920), (56, 562640), (64, 492310), (65, 484736), (70, 450112), (80, 393848), (91, 346240), (104, 302960), (112, 281320), (128, 246155), (130, 242368), (140, 225056), (160, 196924), (182, 173120), (208, 151480), (224, 140660), (260, 121184), (280, 112528), (320, 98462), (364, 86560), (416, 75740), (448, 70330), (455, 69248), (520, 60592), (541, 58240), (560, 56264), (640, 49231), (728, 43280), (832, 37870), (896, 35165), (910, 34624), (1040, 30296), (1082, 29120), (1120, 28132), (1456, 21640), (1664, 18935), (1820, 17312), (2080, 15148), (2164, 14560), (2240, 14066), (2705, 11648), (2912, 10820), (3640, 8656), (3787, 8320), (4160, 7574), (4328, 7280), (4480, 7033), (5410, 5824)]