19679440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:161

約数の個数: 120

約数和(自身を含む): 53434080

約数和(自身を除く): 33754640

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 107, 110, 121, 152, 176, 190, 209, 214, 220, 242, 304, 380, 418, 428, 440, 484, 535, 605, 760, 836, 856, 880, 968, 1045, 1070, 1177, 1210, 1520, 1672, 1712, 1936, 2033, 2090, 2140, 2299, 2354, 2420, 3344, 4066, 4180, 4280, 4598, 4708, 4840, 5885, 8132, 8360, 8560, 9196, 9416, 9680, 10165, 11495, 11770, 12947, 16264, 16720, 18392, 18832, 20330, 22363, 22990, 23540, 25894, 32528, 36784, 40660, 44726, 45980, 47080, 51788, 64735, 81320, 89452, 91960, 94160, 103576, 111815, 129470, 162640, 178904, 183920, 207152, 223630, 245993, 258940, 357808, 447260, 491986, 517880, 894520, 983972, 1035760, 1229965, 1789040, 1967944, 2459930, 3935888, 4919860, 9839720, 19679440]

約数ペア:

[(1, 19679440), (2, 9839720), (4, 4919860), (5, 3935888), (8, 2459930), (10, 1967944), (11, 1789040), (16, 1229965), (19, 1035760), (20, 983972), (22, 894520), (38, 517880), (40, 491986), (44, 447260), (55, 357808), (76, 258940), (80, 245993), (88, 223630), (95, 207152), (107, 183920), (110, 178904), (121, 162640), (152, 129470), (176, 111815), (190, 103576), (209, 94160), (214, 91960), (220, 89452), (242, 81320), (304, 64735), (380, 51788), (418, 47080), (428, 45980), (440, 44726), (484, 40660), (535, 36784), (605, 32528), (760, 25894), (836, 23540), (856, 22990), (880, 22363), (968, 20330), (1045, 18832), (1070, 18392), (1177, 16720), (1210, 16264), (1520, 12947), (1672, 11770), (1712, 11495), (1936, 10165), (2033, 9680), (2090, 9416), (2140, 9196), (2299, 8560), (2354, 8360), (2420, 8132), (3344, 5885), (4066, 4840), (4180, 4708), (4280, 4598)]