620199020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{142903}}^1$

素因数の和:142950

約数の個数: 48

約数和(自身を含む): 1536503808

約数和(自身を除く): 916304788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 142903, 285806, 571612, 714515, 1000321, 1429030, 2000642, 2858060, 4001284, 4429993, 5001605, 8859986, 10003210, 17719972, 20006420, 22149965, 31009951, 44299930, 62019902, 88599860, 124039804, 155049755, 310099510, 620199020]

約数ペア:

[(1, 620199020), (2, 310099510), (4, 155049755), (5, 124039804), (7, 88599860), (10, 62019902), (14, 44299930), (20, 31009951), (28, 22149965), (31, 20006420), (35, 17719972), (62, 10003210), (70, 8859986), (124, 5001605), (140, 4429993), (155, 4001284), (217, 2858060), (310, 2000642), (434, 1429030), (620, 1000321), (868, 714515), (1085, 571612), (2170, 285806), (4340, 142903)]