1987316375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{8867}}^1$

素因数の和:9056

約数の個数: 32

約数和(自身を含む): 2722546944

約数和(自身を除く): 735230569

約数列:

[1, 5, 11, 25, 55, 125, 163, 275, 815, 1375, 1793, 4075, 8867, 8965, 20375, 44335, 44825, 97537, 221675, 224125, 487685, 1108375, 1445321, 2438425, 7226605, 12192125, 15898531, 36133025, 79492655, 180665125, 397463275, 1987316375]

約数ペア:

[(1, 1987316375), (5, 397463275), (11, 180665125), (25, 79492655), (55, 36133025), (125, 15898531), (163, 12192125), (275, 7226605), (815, 2438425), (1375, 1445321), (1793, 1108375), (4075, 487685), (8867, 224125), (8965, 221675), (20375, 97537), (44335, 44825)]