2019900540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{687041}}^1$

素因数の和:687067

約数の個数: 72

約数和(自身を含む): 6579114192

約数和(自身を除く): 4559213652

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 687041, 1374082, 2061123, 2748164, 3435205, 4122246, 4809287, 6870410, 8244492, 9618574, 10305615, 13740820, 14427861, 19237148, 20611230, 24046435, 28855722, 33665009, 41222460, 48092870, 57711444, 67330018, 72139305, 96185740, 100995027, 134660036, 144278610, 168325045, 201990054, 288557220, 336650090, 403980108, 504975135, 673300180, 1009950270, 2019900540]

約数ペア:

[(1, 2019900540), (2, 1009950270), (3, 673300180), (4, 504975135), (5, 403980108), (6, 336650090), (7, 288557220), (10, 201990054), (12, 168325045), (14, 144278610), (15, 134660036), (20, 100995027), (21, 96185740), (28, 72139305), (30, 67330018), (35, 57711444), (42, 48092870), (49, 41222460), (60, 33665009), (70, 28855722), (84, 24046435), (98, 20611230), (105, 19237148), (140, 14427861), (147, 13740820), (196, 10305615), (210, 9618574), (245, 8244492), (294, 6870410), (420, 4809287), (490, 4122246), (588, 3435205), (735, 2748164), (980, 2061123), (1470, 1374082), (2940, 687041)]