31970000

素因数分解:

$2^4\times 5^4\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:190

約数の個数: 100

約数和(自身を含む): 81348960

約数和(自身を除く): 49378960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 125, 139, 184, 200, 230, 250, 278, 368, 400, 460, 500, 556, 575, 625, 695, 920, 1000, 1112, 1150, 1250, 1390, 1840, 2000, 2224, 2300, 2500, 2780, 2875, 3197, 3475, 4600, 5000, 5560, 5750, 6394, 6950, 9200, 10000, 11120, 11500, 12788, 13900, 14375, 15985, 17375, 23000, 25576, 27800, 28750, 31970, 34750, 46000, 51152, 55600, 57500, 63940, 69500, 79925, 86875, 115000, 127880, 139000, 159850, 173750, 230000, 255760, 278000, 319700, 347500, 399625, 639400, 695000, 799250, 1278800, 1390000, 1598500, 1998125, 3197000, 3996250, 6394000, 7992500, 15985000, 31970000]

約数ペア:

[(1, 31970000), (2, 15985000), (4, 7992500), (5, 6394000), (8, 3996250), (10, 3197000), (16, 1998125), (20, 1598500), (23, 1390000), (25, 1278800), (40, 799250), (46, 695000), (50, 639400), (80, 399625), (92, 347500), (100, 319700), (115, 278000), (125, 255760), (139, 230000), (184, 173750), (200, 159850), (230, 139000), (250, 127880), (278, 115000), (368, 86875), (400, 79925), (460, 69500), (500, 63940), (556, 57500), (575, 55600), (625, 51152), (695, 46000), (920, 34750), (1000, 31970), (1112, 28750), (1150, 27800), (1250, 25576), (1390, 23000), (1840, 17375), (2000, 15985), (2224, 14375), (2300, 13900), (2500, 12788), (2780, 11500), (2875, 11120), (3197, 10000), (3475, 9200), (4600, 6950), (5000, 6394), (5560, 5750)]