30987100

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{347}}^1$

素因数の和:427

約数の個数: 72

約数和(自身を含む): 72495360

約数和(自身を除く): 41508260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 47, 50, 76, 94, 95, 100, 188, 190, 235, 347, 380, 470, 475, 694, 893, 940, 950, 1175, 1388, 1735, 1786, 1900, 2350, 3470, 3572, 4465, 4700, 6593, 6940, 8675, 8930, 13186, 16309, 17350, 17860, 22325, 26372, 32618, 32965, 34700, 44650, 65236, 65930, 81545, 89300, 131860, 163090, 164825, 309871, 326180, 329650, 407725, 619742, 659300, 815450, 1239484, 1549355, 1630900, 3098710, 6197420, 7746775, 15493550, 30987100]

約数ペア:

[(1, 30987100), (2, 15493550), (4, 7746775), (5, 6197420), (10, 3098710), (19, 1630900), (20, 1549355), (25, 1239484), (38, 815450), (47, 659300), (50, 619742), (76, 407725), (94, 329650), (95, 326180), (100, 309871), (188, 164825), (190, 163090), (235, 131860), (347, 89300), (380, 81545), (470, 65930), (475, 65236), (694, 44650), (893, 34700), (940, 32965), (950, 32618), (1175, 26372), (1388, 22325), (1735, 17860), (1786, 17350), (1900, 16309), (2350, 13186), (3470, 8930), (3572, 8675), (4465, 6940), (4700, 6593)]