312760240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:255

約数の個数: 160

約数和(自身を含む): 824947200

約数和(自身を除く): 512186960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 89, 104, 109, 124, 130, 155, 178, 208, 218, 248, 260, 310, 356, 403, 436, 445, 496, 520, 545, 620, 712, 806, 872, 890, 1040, 1090, 1157, 1240, 1417, 1424, 1612, 1744, 1780, 2015, 2180, 2314, 2480, 2759, 2834, 3224, 3379, 3560, 4030, 4360, 4628, 5518, 5668, 5785, 6448, 6758, 7085, 7120, 8060, 8720, 9256, 9701, 11036, 11336, 11570, 13516, 13795, 14170, 16120, 16895, 18512, 19402, 22072, 22672, 23140, 27032, 27590, 28340, 32240, 33790, 35867, 38804, 43927, 44144, 46280, 48505, 54064, 55180, 56680, 67580, 71734, 77608, 87854, 92560, 97010, 110360, 113360, 126113, 135160, 143468, 155216, 175708, 179335, 194020, 219635, 220720, 252226, 270320, 286936, 300731, 351416, 358670, 388040, 439270, 504452, 573872, 601462, 630565, 702832, 717340, 776080, 878540, 1008904, 1202924, 1261130, 1434680, 1503655, 1757080, 2017808, 2405848, 2522260, 2869360, 3007310, 3514160, 3909503, 4811696, 5044520, 6014620, 7819006, 10089040, 12029240, 15638012, 19547515, 24058480, 31276024, 39095030, 62552048, 78190060, 156380120, 312760240]

約数ペア:

[(1, 312760240), (2, 156380120), (4, 78190060), (5, 62552048), (8, 39095030), (10, 31276024), (13, 24058480), (16, 19547515), (20, 15638012), (26, 12029240), (31, 10089040), (40, 7819006), (52, 6014620), (62, 5044520), (65, 4811696), (80, 3909503), (89, 3514160), (104, 3007310), (109, 2869360), (124, 2522260), (130, 2405848), (155, 2017808), (178, 1757080), (208, 1503655), (218, 1434680), (248, 1261130), (260, 1202924), (310, 1008904), (356, 878540), (403, 776080), (436, 717340), (445, 702832), (496, 630565), (520, 601462), (545, 573872), (620, 504452), (712, 439270), (806, 388040), (872, 358670), (890, 351416), (1040, 300731), (1090, 286936), (1157, 270320), (1240, 252226), (1417, 220720), (1424, 219635), (1612, 194020), (1744, 179335), (1780, 175708), (2015, 155216), (2180, 143468), (2314, 135160), (2480, 126113), (2759, 113360), (2834, 110360), (3224, 97010), (3379, 92560), (3560, 87854), (4030, 77608), (4360, 71734), (4628, 67580), (5518, 56680), (5668, 55180), (5785, 54064), (6448, 48505), (6758, 46280), (7085, 44144), (7120, 43927), (8060, 38804), (8720, 35867), (9256, 33790), (9701, 32240), (11036, 28340), (11336, 27590), (11570, 27032), (13516, 23140), (13795, 22672), (14170, 22072), (16120, 19402), (16895, 18512)]