18197820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{313}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 61719840

約数和(自身を除く): 43522020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 19, 20, 30, 34, 36, 38, 45, 51, 57, 60, 68, 76, 85, 90, 95, 102, 114, 153, 170, 171, 180, 190, 204, 228, 255, 285, 306, 313, 323, 340, 342, 380, 510, 570, 612, 626, 646, 684, 765, 855, 939, 969, 1020, 1140, 1252, 1292, 1530, 1565, 1615, 1710, 1878, 1938, 2817, 2907, 3060, 3130, 3230, 3420, 3756, 3876, 4695, 4845, 5321, 5634, 5814, 5947, 6260, 6460, 9390, 9690, 10642, 11268, 11628, 11894, 14085, 14535, 15963, 17841, 18780, 19380, 21284, 23788, 26605, 28170, 29070, 29735, 31926, 35682, 47889, 53210, 53523, 56340, 58140, 59470, 63852, 71364, 79815, 89205, 95778, 101099, 106420, 107046, 118940, 159630, 178410, 191556, 202198, 214092, 239445, 267615, 303297, 319260, 356820, 404396, 478890, 505495, 535230, 606594, 909891, 957780, 1010990, 1070460, 1213188, 1516485, 1819782, 2021980, 3032970, 3639564, 4549455, 6065940, 9098910, 18197820]

約数ペア:

[(1, 18197820), (2, 9098910), (3, 6065940), (4, 4549455), (5, 3639564), (6, 3032970), (9, 2021980), (10, 1819782), (12, 1516485), (15, 1213188), (17, 1070460), (18, 1010990), (19, 957780), (20, 909891), (30, 606594), (34, 535230), (36, 505495), (38, 478890), (45, 404396), (51, 356820), (57, 319260), (60, 303297), (68, 267615), (76, 239445), (85, 214092), (90, 202198), (95, 191556), (102, 178410), (114, 159630), (153, 118940), (170, 107046), (171, 106420), (180, 101099), (190, 95778), (204, 89205), (228, 79815), (255, 71364), (285, 63852), (306, 59470), (313, 58140), (323, 56340), (340, 53523), (342, 53210), (380, 47889), (510, 35682), (570, 31926), (612, 29735), (626, 29070), (646, 28170), (684, 26605), (765, 23788), (855, 21284), (939, 19380), (969, 18780), (1020, 17841), (1140, 15963), (1252, 14535), (1292, 14085), (1530, 11894), (1565, 11628), (1615, 11268), (1710, 10642), (1878, 9690), (1938, 9390), (2817, 6460), (2907, 6260), (3060, 5947), (3130, 5814), (3230, 5634), (3420, 5321), (3756, 4845), (3876, 4695)]