30180820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 65253888

約数和(自身を除く): 35073068

約数列:

[1, 2, 4, 5, 10, 20, 67, 101, 134, 202, 223, 268, 335, 404, 446, 505, 670, 892, 1010, 1115, 1340, 2020, 2230, 4460, 6767, 13534, 14941, 22523, 27068, 29882, 33835, 45046, 59764, 67670, 74705, 90092, 112615, 135340, 149410, 225230, 298820, 450460, 1509041, 3018082, 6036164, 7545205, 15090410, 30180820]

約数ペア:

[(1, 30180820), (2, 15090410), (4, 7545205), (5, 6036164), (10, 3018082), (20, 1509041), (67, 450460), (101, 298820), (134, 225230), (202, 149410), (223, 135340), (268, 112615), (335, 90092), (404, 74705), (446, 67670), (505, 59764), (670, 45046), (892, 33835), (1010, 29882), (1115, 27068), (1340, 22523), (2020, 14941), (2230, 13534), (4460, 6767)]