1961567240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{803921}}^1$

素因数の和:803993

約数の個数: 32

約数和(自身を含む): 4485884760

約数和(自身を除く): 2524317520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 803921, 1607842, 3215684, 4019605, 6431368, 8039210, 16078420, 32156840, 49039181, 98078362, 196156724, 245195905, 392313448, 490391810, 980783620, 1961567240]

約数ペア:

[(1, 1961567240), (2, 980783620), (4, 490391810), (5, 392313448), (8, 245195905), (10, 196156724), (20, 98078362), (40, 49039181), (61, 32156840), (122, 16078420), (244, 8039210), (305, 6431368), (488, 4019605), (610, 3215684), (1220, 1607842), (2440, 803921)]