72278000

素因数分解:

$2^4\times 5^3\times {\mathrm{71}}^1\times {\mathrm{509}}^1$

素因数の和:603

約数の個数: 80

約数和(自身を含む): 177577920

約数和(自身を除く): 105299920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 71, 80, 100, 125, 142, 200, 250, 284, 355, 400, 500, 509, 568, 710, 1000, 1018, 1136, 1420, 1775, 2000, 2036, 2545, 2840, 3550, 4072, 5090, 5680, 7100, 8144, 8875, 10180, 12725, 14200, 17750, 20360, 25450, 28400, 35500, 36139, 40720, 50900, 63625, 71000, 72278, 101800, 127250, 142000, 144556, 180695, 203600, 254500, 289112, 361390, 509000, 578224, 722780, 903475, 1018000, 1445560, 1806950, 2891120, 3613900, 4517375, 7227800, 9034750, 14455600, 18069500, 36139000, 72278000]

約数ペア:

[(1, 72278000), (2, 36139000), (4, 18069500), (5, 14455600), (8, 9034750), (10, 7227800), (16, 4517375), (20, 3613900), (25, 2891120), (40, 1806950), (50, 1445560), (71, 1018000), (80, 903475), (100, 722780), (125, 578224), (142, 509000), (200, 361390), (250, 289112), (284, 254500), (355, 203600), (400, 180695), (500, 144556), (509, 142000), (568, 127250), (710, 101800), (1000, 72278), (1018, 71000), (1136, 63625), (1420, 50900), (1775, 40720), (2000, 36139), (2036, 35500), (2545, 28400), (2840, 25450), (3550, 20360), (4072, 17750), (5090, 14200), (5680, 12725), (7100, 10180), (8144, 8875)]