138381520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{55799}}^1$

素因数の和:55843

約数の個数: 40

約数和(自身を含む): 332121600

約数和(自身を除く): 193740080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 55799, 111598, 223196, 278995, 446392, 557990, 892784, 1115980, 1729769, 2231960, 3459538, 4463920, 6919076, 8648845, 13838152, 17297690, 27676304, 34595380, 69190760, 138381520]

約数ペア:

[(1, 138381520), (2, 69190760), (4, 34595380), (5, 27676304), (8, 17297690), (10, 13838152), (16, 8648845), (20, 6919076), (31, 4463920), (40, 3459538), (62, 2231960), (80, 1729769), (124, 1115980), (155, 892784), (248, 557990), (310, 446392), (496, 278995), (620, 223196), (1240, 111598), (2480, 55799)]