19869700

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{163}}^1$

素因数の和:253

約数の個数: 72

約数和(自身を含む): 46122048

約数和(自身を除く): 26252348

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 50, 53, 92, 100, 106, 115, 163, 212, 230, 265, 326, 460, 530, 575, 652, 815, 1060, 1150, 1219, 1325, 1630, 2300, 2438, 2650, 3260, 3749, 4075, 4876, 5300, 6095, 7498, 8150, 8639, 12190, 14996, 16300, 17278, 18745, 24380, 30475, 34556, 37490, 43195, 60950, 74980, 86390, 93725, 121900, 172780, 187450, 198697, 215975, 374900, 397394, 431950, 794788, 863900, 993485, 1986970, 3973940, 4967425, 9934850, 19869700]

約数ペア:

[(1, 19869700), (2, 9934850), (4, 4967425), (5, 3973940), (10, 1986970), (20, 993485), (23, 863900), (25, 794788), (46, 431950), (50, 397394), (53, 374900), (92, 215975), (100, 198697), (106, 187450), (115, 172780), (163, 121900), (212, 93725), (230, 86390), (265, 74980), (326, 60950), (460, 43195), (530, 37490), (575, 34556), (652, 30475), (815, 24380), (1060, 18745), (1150, 17278), (1219, 16300), (1325, 14996), (1630, 12190), (2300, 8639), (2438, 8150), (2650, 7498), (3260, 6095), (3749, 5300), (4075, 4876)]