209210320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{7669}}^1$

素因数の和:7724

約数の個数: 80

約数和(自身を含む): 547822080

約数和(自身を除く): 338611760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 44, 55, 62, 80, 88, 110, 124, 155, 176, 220, 248, 310, 341, 440, 496, 620, 682, 880, 1240, 1364, 1705, 2480, 2728, 3410, 5456, 6820, 7669, 13640, 15338, 27280, 30676, 38345, 61352, 76690, 84359, 122704, 153380, 168718, 237739, 306760, 337436, 421795, 475478, 613520, 674872, 843590, 950956, 1188695, 1349744, 1687180, 1901912, 2377390, 2615129, 3374360, 3803824, 4754780, 5230258, 6748720, 9509560, 10460516, 13075645, 19019120, 20921032, 26151290, 41842064, 52302580, 104605160, 209210320]

約数ペア:

[(1, 209210320), (2, 104605160), (4, 52302580), (5, 41842064), (8, 26151290), (10, 20921032), (11, 19019120), (16, 13075645), (20, 10460516), (22, 9509560), (31, 6748720), (40, 5230258), (44, 4754780), (55, 3803824), (62, 3374360), (80, 2615129), (88, 2377390), (110, 1901912), (124, 1687180), (155, 1349744), (176, 1188695), (220, 950956), (248, 843590), (310, 674872), (341, 613520), (440, 475478), (496, 421795), (620, 337436), (682, 306760), (880, 237739), (1240, 168718), (1364, 153380), (1705, 122704), (2480, 84359), (2728, 76690), (3410, 61352), (5456, 38345), (6820, 30676), (7669, 27280), (13640, 15338)]