18993870

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 144

約数和(自身を含む): 59220720

約数和(自身を除く): 40226850

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 49, 59, 63, 70, 73, 90, 98, 105, 118, 126, 146, 147, 177, 210, 219, 245, 294, 295, 315, 354, 365, 413, 438, 441, 490, 511, 531, 590, 630, 657, 730, 735, 826, 882, 885, 1022, 1062, 1095, 1239, 1314, 1470, 1533, 1770, 2065, 2190, 2205, 2478, 2555, 2655, 2891, 3066, 3285, 3577, 3717, 4130, 4307, 4410, 4599, 5110, 5310, 5782, 6195, 6570, 7154, 7434, 7665, 8614, 8673, 9198, 10731, 12390, 12921, 14455, 15330, 17346, 17885, 18585, 21462, 21535, 22995, 25842, 26019, 28910, 30149, 32193, 35770, 37170, 38763, 43070, 43365, 45990, 52038, 53655, 60298, 64386, 64605, 77526, 86730, 90447, 107310, 129210, 130095, 150745, 160965, 180894, 193815, 211043, 260190, 271341, 301490, 321930, 387630, 422086, 452235, 542682, 633129, 904470, 1055215, 1266258, 1356705, 1899387, 2110430, 2713410, 3165645, 3798774, 6331290, 9496935, 18993870]

約数ペア:

[(1, 18993870), (2, 9496935), (3, 6331290), (5, 3798774), (6, 3165645), (7, 2713410), (9, 2110430), (10, 1899387), (14, 1356705), (15, 1266258), (18, 1055215), (21, 904470), (30, 633129), (35, 542682), (42, 452235), (45, 422086), (49, 387630), (59, 321930), (63, 301490), (70, 271341), (73, 260190), (90, 211043), (98, 193815), (105, 180894), (118, 160965), (126, 150745), (146, 130095), (147, 129210), (177, 107310), (210, 90447), (219, 86730), (245, 77526), (294, 64605), (295, 64386), (315, 60298), (354, 53655), (365, 52038), (413, 45990), (438, 43365), (441, 43070), (490, 38763), (511, 37170), (531, 35770), (590, 32193), (630, 30149), (657, 28910), (730, 26019), (735, 25842), (826, 22995), (882, 21535), (885, 21462), (1022, 18585), (1062, 17885), (1095, 17346), (1239, 15330), (1314, 14455), (1470, 12921), (1533, 12390), (1770, 10731), (2065, 9198), (2190, 8673), (2205, 8614), (2478, 7665), (2555, 7434), (2655, 7154), (2891, 6570), (3066, 6195), (3285, 5782), (3577, 5310), (3717, 5110), (4130, 4599), (4307, 4410)]