19738890

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8123}}^1$

素因数の和:8145

約数の個数: 48

約数和(自身を含む): 53228448

約数和(自身を除く): 33489558

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8123, 16246, 24369, 40615, 48738, 73107, 81230, 121845, 146214, 219321, 243690, 365535, 438642, 657963, 731070, 1096605, 1315926, 1973889, 2193210, 3289815, 3947778, 6579630, 9869445, 19738890]

約数ペア:

[(1, 19738890), (2, 9869445), (3, 6579630), (5, 3947778), (6, 3289815), (9, 2193210), (10, 1973889), (15, 1315926), (18, 1096605), (27, 731070), (30, 657963), (45, 438642), (54, 365535), (81, 243690), (90, 219321), (135, 146214), (162, 121845), (243, 81230), (270, 73107), (405, 48738), (486, 40615), (810, 24369), (1215, 16246), (2430, 8123)]