178835940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21139}}^1$

素因数の和:21201

約数の個数: 72

約数和(自身を含む): 554037120

約数和(自身を除く): 375201180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2820, 4230, 8460, 21139, 42278, 63417, 84556, 105695, 126834, 190251, 211390, 253668, 317085, 380502, 422780, 634170, 761004, 951255, 993533, 1268340, 1902510, 1987066, 2980599, 3805020, 3974132, 4967665, 5961198, 8941797, 9935330, 11922396, 14902995, 17883594, 19870660, 29805990, 35767188, 44708985, 59611980, 89417970, 178835940]

約数ペア:

[(1, 178835940), (2, 89417970), (3, 59611980), (4, 44708985), (5, 35767188), (6, 29805990), (9, 19870660), (10, 17883594), (12, 14902995), (15, 11922396), (18, 9935330), (20, 8941797), (30, 5961198), (36, 4967665), (45, 3974132), (47, 3805020), (60, 2980599), (90, 1987066), (94, 1902510), (141, 1268340), (180, 993533), (188, 951255), (235, 761004), (282, 634170), (423, 422780), (470, 380502), (564, 317085), (705, 253668), (846, 211390), (940, 190251), (1410, 126834), (1692, 105695), (2115, 84556), (2820, 63417), (4230, 42278), (8460, 21139)]