29780000

素因数分解:

$2^5\times 5^4\times {\mathrm{1489}}^1$

素因数の和:1519

約数の個数: 60

約数和(自身を含む): 73312470

約数和(自身を除く): 43532470

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 625, 800, 1000, 1250, 1489, 2000, 2500, 2978, 4000, 5000, 5956, 7445, 10000, 11912, 14890, 20000, 23824, 29780, 37225, 47648, 59560, 74450, 119120, 148900, 186125, 238240, 297800, 372250, 595600, 744500, 930625, 1191200, 1489000, 1861250, 2978000, 3722500, 5956000, 7445000, 14890000, 29780000]

約数ペア:

[(1, 29780000), (2, 14890000), (4, 7445000), (5, 5956000), (8, 3722500), (10, 2978000), (16, 1861250), (20, 1489000), (25, 1191200), (32, 930625), (40, 744500), (50, 595600), (80, 372250), (100, 297800), (125, 238240), (160, 186125), (200, 148900), (250, 119120), (400, 74450), (500, 59560), (625, 47648), (800, 37225), (1000, 29780), (1250, 23824), (1489, 20000), (2000, 14890), (2500, 11912), (2978, 10000), (4000, 7445), (5000, 5956)]