7874020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5113}}^1$

素因数の和:5140

約数の個数: 48

約数和(自身を含む): 20619648

約数和(自身を除く): 12745628

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 5113, 10226, 20452, 25565, 35791, 51130, 56243, 71582, 102260, 112486, 143164, 178955, 224972, 281215, 357910, 393701, 562430, 715820, 787402, 1124860, 1574804, 1968505, 3937010, 7874020]

約数ペア:

[(1, 7874020), (2, 3937010), (4, 1968505), (5, 1574804), (7, 1124860), (10, 787402), (11, 715820), (14, 562430), (20, 393701), (22, 357910), (28, 281215), (35, 224972), (44, 178955), (55, 143164), (70, 112486), (77, 102260), (110, 71582), (140, 56243), (154, 51130), (220, 35791), (308, 25565), (385, 20452), (770, 10226), (1540, 5113)]