19272950

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:233

約数の個数: 48

約数和(自身を含む): 37363680

約数和(自身を除く): 18090730

約数列:

[1, 2, 5, 10, 25, 50, 61, 71, 89, 122, 142, 178, 305, 355, 445, 610, 710, 890, 1525, 1775, 2225, 3050, 3550, 4331, 4450, 5429, 6319, 8662, 10858, 12638, 21655, 27145, 31595, 43310, 54290, 63190, 108275, 135725, 157975, 216550, 271450, 315950, 385459, 770918, 1927295, 3854590, 9636475, 19272950]

約数ペア:

[(1, 19272950), (2, 9636475), (5, 3854590), (10, 1927295), (25, 770918), (50, 385459), (61, 315950), (71, 271450), (89, 216550), (122, 157975), (142, 135725), (178, 108275), (305, 63190), (355, 54290), (445, 43310), (610, 31595), (710, 27145), (890, 21655), (1525, 12638), (1775, 10858), (2225, 8662), (3050, 6319), (3550, 5429), (4331, 4450)]