79925000

素因数分解:

$2^3\times 5^5\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 96

約数和(自身を含む): 196862400

約数和(自身を除く): 116937400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 92, 100, 115, 125, 139, 184, 200, 230, 250, 278, 460, 500, 556, 575, 625, 695, 920, 1000, 1112, 1150, 1250, 1390, 2300, 2500, 2780, 2875, 3125, 3197, 3475, 4600, 5000, 5560, 5750, 6250, 6394, 6950, 11500, 12500, 12788, 13900, 14375, 15985, 17375, 23000, 25000, 25576, 27800, 28750, 31970, 34750, 57500, 63940, 69500, 71875, 79925, 86875, 115000, 127880, 139000, 143750, 159850, 173750, 287500, 319700, 347500, 399625, 434375, 575000, 639400, 695000, 799250, 868750, 1598500, 1737500, 1998125, 3197000, 3475000, 3996250, 7992500, 9990625, 15985000, 19981250, 39962500, 79925000]

約数ペア:

[(1, 79925000), (2, 39962500), (4, 19981250), (5, 15985000), (8, 9990625), (10, 7992500), (20, 3996250), (23, 3475000), (25, 3197000), (40, 1998125), (46, 1737500), (50, 1598500), (92, 868750), (100, 799250), (115, 695000), (125, 639400), (139, 575000), (184, 434375), (200, 399625), (230, 347500), (250, 319700), (278, 287500), (460, 173750), (500, 159850), (556, 143750), (575, 139000), (625, 127880), (695, 115000), (920, 86875), (1000, 79925), (1112, 71875), (1150, 69500), (1250, 63940), (1390, 57500), (2300, 34750), (2500, 31970), (2780, 28750), (2875, 27800), (3125, 25576), (3197, 25000), (3475, 23000), (4600, 17375), (5000, 15985), (5560, 14375), (5750, 13900), (6250, 12788), (6394, 12500), (6950, 11500)]