17967512180

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{3229}}^1\times {\mathrm{4561}}^1$

素因数の和:7860

約数の個数: 48

約数和(自身を含む): 38370617040

約数和(自身を除く): 20403104860

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3229, 4561, 6458, 9122, 12916, 16145, 18244, 22805, 32290, 45610, 64580, 91220, 196969, 278221, 393938, 556442, 787876, 984845, 1112884, 1391105, 1969690, 2782210, 3939380, 5564420, 14727469, 29454938, 58909876, 73637345, 147274690, 294549380, 898375609, 1796751218, 3593502436, 4491878045, 8983756090, 17967512180]

約数ペア:

[(1, 17967512180), (2, 8983756090), (4, 4491878045), (5, 3593502436), (10, 1796751218), (20, 898375609), (61, 294549380), (122, 147274690), (244, 73637345), (305, 58909876), (610, 29454938), (1220, 14727469), (3229, 5564420), (4561, 3939380), (6458, 2782210), (9122, 1969690), (12916, 1391105), (16145, 1112884), (18244, 984845), (22805, 787876), (32290, 556442), (45610, 393938), (64580, 278221), (91220, 196969)]