19535890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 42052608

約数和(自身を除く): 22516718

約数列:

[1, 2, 5, 10, 11, 17, 22, 31, 34, 55, 62, 85, 110, 155, 170, 187, 310, 337, 341, 374, 527, 674, 682, 935, 1054, 1685, 1705, 1870, 2635, 3370, 3410, 3707, 5270, 5729, 5797, 7414, 10447, 11458, 11594, 18535, 20894, 28645, 28985, 37070, 52235, 57290, 57970, 63019, 104470, 114917, 126038, 177599, 229834, 315095, 355198, 574585, 630190, 887995, 1149170, 1775990, 1953589, 3907178, 9767945, 19535890]

約数ペア:

[(1, 19535890), (2, 9767945), (5, 3907178), (10, 1953589), (11, 1775990), (17, 1149170), (22, 887995), (31, 630190), (34, 574585), (55, 355198), (62, 315095), (85, 229834), (110, 177599), (155, 126038), (170, 114917), (187, 104470), (310, 63019), (337, 57970), (341, 57290), (374, 52235), (527, 37070), (674, 28985), (682, 28645), (935, 20894), (1054, 18535), (1685, 11594), (1705, 11458), (1870, 10447), (2635, 7414), (3370, 5797), (3410, 5729), (3707, 5270)]