19730740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:544

約数の個数: 48

約数和(自身を含む): 44049600

約数和(自身を除く): 24318860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 190, 274, 379, 380, 548, 685, 758, 1370, 1516, 1895, 2603, 2740, 3790, 5206, 7201, 7580, 10412, 13015, 14402, 26030, 28804, 36005, 51923, 52060, 72010, 103846, 144020, 207692, 259615, 519230, 986537, 1038460, 1973074, 3946148, 4932685, 9865370, 19730740]

約数ペア:

[(1, 19730740), (2, 9865370), (4, 4932685), (5, 3946148), (10, 1973074), (19, 1038460), (20, 986537), (38, 519230), (76, 259615), (95, 207692), (137, 144020), (190, 103846), (274, 72010), (379, 52060), (380, 51923), (548, 36005), (685, 28804), (758, 26030), (1370, 14402), (1516, 13015), (1895, 10412), (2603, 7580), (2740, 7201), (3790, 5206)]