40026565540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{240169}}^1$

素因数の和:240832

約数の個数: 48

約数和(自身を含む): 90663214320

約数和(自身を除く): 50636648780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 641, 1282, 2564, 3205, 6410, 8333, 12820, 16666, 33332, 41665, 83330, 166660, 240169, 480338, 960676, 1200845, 2401690, 3122197, 4803380, 6244394, 12488788, 15610985, 31221970, 62443940, 153948329, 307896658, 615793316, 769741645, 1539483290, 2001328277, 3078966580, 4002656554, 8005313108, 10006641385, 20013282770, 40026565540]

約数ペア:

[(1, 40026565540), (2, 20013282770), (4, 10006641385), (5, 8005313108), (10, 4002656554), (13, 3078966580), (20, 2001328277), (26, 1539483290), (52, 769741645), (65, 615793316), (130, 307896658), (260, 153948329), (641, 62443940), (1282, 31221970), (2564, 15610985), (3205, 12488788), (6410, 6244394), (8333, 4803380), (12820, 3122197), (16666, 2401690), (33332, 1200845), (41665, 960676), (83330, 480338), (166660, 240169)]