199874680

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1453}}^1$

素因数の和:1664

約数の個数: 64

約数和(自身を含む): 476330400

約数和(自身を除く): 276455720

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 181, 190, 362, 380, 724, 760, 905, 1448, 1453, 1810, 2906, 3439, 3620, 5812, 6878, 7240, 7265, 11624, 13756, 14530, 17195, 27512, 27607, 29060, 34390, 55214, 58120, 68780, 110428, 137560, 138035, 220856, 262993, 276070, 525986, 552140, 1051972, 1104280, 1314965, 2103944, 2629930, 4996867, 5259860, 9993734, 10519720, 19987468, 24984335, 39974936, 49968670, 99937340, 199874680]

約数ペア:

[(1, 199874680), (2, 99937340), (4, 49968670), (5, 39974936), (8, 24984335), (10, 19987468), (19, 10519720), (20, 9993734), (38, 5259860), (40, 4996867), (76, 2629930), (95, 2103944), (152, 1314965), (181, 1104280), (190, 1051972), (362, 552140), (380, 525986), (724, 276070), (760, 262993), (905, 220856), (1448, 138035), (1453, 137560), (1810, 110428), (2906, 68780), (3439, 58120), (3620, 55214), (5812, 34390), (6878, 29060), (7240, 27607), (7265, 27512), (11624, 17195), (13756, 14530)]