68712500

素因数分解:

$2^2\times 5^5\times {\mathrm{23}}^1\times {\mathrm{239}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 157489920

約数和(自身を除く): 88777420

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 92, 100, 115, 125, 230, 239, 250, 460, 478, 500, 575, 625, 956, 1150, 1195, 1250, 2300, 2390, 2500, 2875, 3125, 4780, 5497, 5750, 5975, 6250, 10994, 11500, 11950, 12500, 14375, 21988, 23900, 27485, 28750, 29875, 54970, 57500, 59750, 71875, 109940, 119500, 137425, 143750, 149375, 274850, 287500, 298750, 549700, 597500, 687125, 746875, 1374250, 1493750, 2748500, 2987500, 3435625, 6871250, 13742500, 17178125, 34356250, 68712500]

約数ペア:

[(1, 68712500), (2, 34356250), (4, 17178125), (5, 13742500), (10, 6871250), (20, 3435625), (23, 2987500), (25, 2748500), (46, 1493750), (50, 1374250), (92, 746875), (100, 687125), (115, 597500), (125, 549700), (230, 298750), (239, 287500), (250, 274850), (460, 149375), (478, 143750), (500, 137425), (575, 119500), (625, 109940), (956, 71875), (1150, 59750), (1195, 57500), (1250, 54970), (2300, 29875), (2390, 28750), (2500, 27485), (2875, 23900), (3125, 21988), (4780, 14375), (5497, 12500), (5750, 11950), (5975, 11500), (6250, 10994)]