81857100

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:320

約数の個数: 144

約数和(自身を含む): 258594560

約数和(自身を除く): 176737460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 139, 150, 151, 156, 195, 260, 278, 300, 302, 325, 390, 417, 453, 556, 604, 650, 695, 755, 780, 834, 906, 975, 1300, 1390, 1510, 1668, 1807, 1812, 1950, 1963, 2085, 2265, 2780, 3020, 3475, 3614, 3775, 3900, 3926, 4170, 4530, 5421, 5889, 6950, 7228, 7550, 7852, 8340, 9035, 9060, 9815, 10425, 10842, 11325, 11778, 13900, 15100, 18070, 19630, 20850, 20989, 21684, 22650, 23556, 27105, 29445, 36140, 39260, 41700, 41978, 45175, 45300, 49075, 54210, 58890, 62967, 83956, 90350, 98150, 104945, 108420, 117780, 125934, 135525, 147225, 180700, 196300, 209890, 251868, 271050, 272857, 294450, 314835, 419780, 524725, 542100, 545714, 588900, 629670, 818571, 1049450, 1091428, 1259340, 1364285, 1574175, 1637142, 2098900, 2728570, 3148350, 3274284, 4092855, 5457140, 6296700, 6821425, 8185710, 13642850, 16371420, 20464275, 27285700, 40928550, 81857100]

約数ペア:

[(1, 81857100), (2, 40928550), (3, 27285700), (4, 20464275), (5, 16371420), (6, 13642850), (10, 8185710), (12, 6821425), (13, 6296700), (15, 5457140), (20, 4092855), (25, 3274284), (26, 3148350), (30, 2728570), (39, 2098900), (50, 1637142), (52, 1574175), (60, 1364285), (65, 1259340), (75, 1091428), (78, 1049450), (100, 818571), (130, 629670), (139, 588900), (150, 545714), (151, 542100), (156, 524725), (195, 419780), (260, 314835), (278, 294450), (300, 272857), (302, 271050), (325, 251868), (390, 209890), (417, 196300), (453, 180700), (556, 147225), (604, 135525), (650, 125934), (695, 117780), (755, 108420), (780, 104945), (834, 98150), (906, 90350), (975, 83956), (1300, 62967), (1390, 58890), (1510, 54210), (1668, 49075), (1807, 45300), (1812, 45175), (1950, 41978), (1963, 41700), (2085, 39260), (2265, 36140), (2780, 29445), (3020, 27105), (3475, 23556), (3614, 22650), (3775, 21684), (3900, 20989), (3926, 20850), (4170, 19630), (4530, 18070), (5421, 15100), (5889, 13900), (6950, 11778), (7228, 11325), (7550, 10842), (7852, 10425), (8340, 9815), (9035, 9060)]