72549220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2689}}^1$

素因数の和:2788

約数の個数: 48

約数和(自身を含む): 162691200

約数和(自身を除く): 90141980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1349, 1420, 2689, 2698, 5378, 5396, 6745, 10756, 13445, 13490, 26890, 26980, 51091, 53780, 102182, 190919, 204364, 255455, 381838, 510910, 763676, 954595, 1021820, 1909190, 3627461, 3818380, 7254922, 14509844, 18137305, 36274610, 72549220]

約数ペア:

[(1, 72549220), (2, 36274610), (4, 18137305), (5, 14509844), (10, 7254922), (19, 3818380), (20, 3627461), (38, 1909190), (71, 1021820), (76, 954595), (95, 763676), (142, 510910), (190, 381838), (284, 255455), (355, 204364), (380, 190919), (710, 102182), (1349, 53780), (1420, 51091), (2689, 26980), (2698, 26890), (5378, 13490), (5396, 13445), (6745, 10756)]