40398720

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{397}}^1$

素因数の和:472

約数の個数: 128

約数和(自身を含む): 131531040

約数和(自身を除く): 91132320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 53, 60, 64, 80, 96, 106, 120, 128, 159, 160, 192, 212, 240, 265, 318, 320, 384, 397, 424, 480, 530, 636, 640, 794, 795, 848, 960, 1060, 1191, 1272, 1588, 1590, 1696, 1920, 1985, 2120, 2382, 2544, 3176, 3180, 3392, 3970, 4240, 4764, 5088, 5955, 6352, 6360, 6784, 7940, 8480, 9528, 10176, 11910, 12704, 12720, 15880, 16960, 19056, 20352, 21041, 23820, 25408, 25440, 31760, 33920, 38112, 42082, 47640, 50816, 50880, 63123, 63520, 76224, 84164, 95280, 101760, 105205, 126246, 127040, 152448, 168328, 190560, 210410, 252492, 254080, 315615, 336656, 381120, 420820, 504984, 631230, 673312, 762240, 841640, 1009968, 1262460, 1346624, 1683280, 2019936, 2524920, 2693248, 3366560, 4039872, 5049840, 6733120, 8079744, 10099680, 13466240, 20199360, 40398720]

約数ペア:

[(1, 40398720), (2, 20199360), (3, 13466240), (4, 10099680), (5, 8079744), (6, 6733120), (8, 5049840), (10, 4039872), (12, 3366560), (15, 2693248), (16, 2524920), (20, 2019936), (24, 1683280), (30, 1346624), (32, 1262460), (40, 1009968), (48, 841640), (53, 762240), (60, 673312), (64, 631230), (80, 504984), (96, 420820), (106, 381120), (120, 336656), (128, 315615), (159, 254080), (160, 252492), (192, 210410), (212, 190560), (240, 168328), (265, 152448), (318, 127040), (320, 126246), (384, 105205), (397, 101760), (424, 95280), (480, 84164), (530, 76224), (636, 63520), (640, 63123), (794, 50880), (795, 50816), (848, 47640), (960, 42082), (1060, 38112), (1191, 33920), (1272, 31760), (1588, 25440), (1590, 25408), (1696, 23820), (1920, 21041), (1985, 20352), (2120, 19056), (2382, 16960), (2544, 15880), (3176, 12720), (3180, 12704), (3392, 11910), (3970, 10176), (4240, 9528), (4764, 8480), (5088, 7940), (5955, 6784), (6352, 6360)]