19884390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:461

約数の個数: 64

約数和(自身を含む): 51093504

約数和(自身を除く): 31209114

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 127, 170, 254, 255, 307, 381, 510, 614, 635, 762, 921, 1270, 1535, 1842, 1905, 2159, 3070, 3810, 4318, 4605, 5219, 6477, 9210, 10438, 10795, 12954, 15657, 21590, 26095, 31314, 32385, 38989, 52190, 64770, 77978, 78285, 116967, 156570, 194945, 233934, 389890, 584835, 662813, 1169670, 1325626, 1988439, 3314065, 3976878, 6628130, 9942195, 19884390]

約数ペア:

[(1, 19884390), (2, 9942195), (3, 6628130), (5, 3976878), (6, 3314065), (10, 1988439), (15, 1325626), (17, 1169670), (30, 662813), (34, 584835), (51, 389890), (85, 233934), (102, 194945), (127, 156570), (170, 116967), (254, 78285), (255, 77978), (307, 64770), (381, 52190), (510, 38989), (614, 32385), (635, 31314), (762, 26095), (921, 21590), (1270, 15657), (1535, 12954), (1842, 10795), (1905, 10438), (2159, 9210), (3070, 6477), (3810, 5219), (4318, 4605)]