29978000

素因数分解:

$2^4\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1153}}^1$

素因数の和:1189

約数の個数: 80

約数和(自身を含む): 78130416

約数和(自身を除く): 48152416

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 125, 130, 200, 208, 250, 260, 325, 400, 500, 520, 650, 1000, 1040, 1153, 1300, 1625, 2000, 2306, 2600, 3250, 4612, 5200, 5765, 6500, 9224, 11530, 13000, 14989, 18448, 23060, 26000, 28825, 29978, 46120, 57650, 59956, 74945, 92240, 115300, 119912, 144125, 149890, 230600, 239824, 288250, 299780, 374725, 461200, 576500, 599560, 749450, 1153000, 1199120, 1498900, 1873625, 2306000, 2997800, 3747250, 5995600, 7494500, 14989000, 29978000]

約数ペア:

[(1, 29978000), (2, 14989000), (4, 7494500), (5, 5995600), (8, 3747250), (10, 2997800), (13, 2306000), (16, 1873625), (20, 1498900), (25, 1199120), (26, 1153000), (40, 749450), (50, 599560), (52, 576500), (65, 461200), (80, 374725), (100, 299780), (104, 288250), (125, 239824), (130, 230600), (200, 149890), (208, 144125), (250, 119912), (260, 115300), (325, 92240), (400, 74945), (500, 59956), (520, 57650), (650, 46120), (1000, 29978), (1040, 28825), (1153, 26000), (1300, 23060), (1625, 18448), (2000, 14989), (2306, 13000), (2600, 11530), (3250, 9224), (4612, 6500), (5200, 5765)]