145217740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{4799}}^1$

素因数の和:4914

約数の個数: 48

約数和(自身を含む): 326592000

約数和(自身を除く): 181374260

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 89, 170, 178, 340, 356, 445, 890, 1513, 1780, 3026, 4799, 6052, 7565, 9598, 15130, 19196, 23995, 30260, 47990, 81583, 95980, 163166, 326332, 407915, 427111, 815830, 854222, 1631660, 1708444, 2135555, 4271110, 7260887, 8542220, 14521774, 29043548, 36304435, 72608870, 145217740]

約数ペア:

[(1, 145217740), (2, 72608870), (4, 36304435), (5, 29043548), (10, 14521774), (17, 8542220), (20, 7260887), (34, 4271110), (68, 2135555), (85, 1708444), (89, 1631660), (170, 854222), (178, 815830), (340, 427111), (356, 407915), (445, 326332), (890, 163166), (1513, 95980), (1780, 81583), (3026, 47990), (4799, 30260), (6052, 23995), (7565, 19196), (9598, 15130)]