209503880

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{1523}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 499262400

約数和(自身を除く): 289758520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 181, 190, 362, 380, 724, 760, 905, 1448, 1523, 1810, 3046, 3439, 3620, 6092, 6878, 7240, 7615, 12184, 13756, 15230, 17195, 27512, 28937, 30460, 34390, 57874, 60920, 68780, 115748, 137560, 144685, 231496, 275663, 289370, 551326, 578740, 1102652, 1157480, 1378315, 2205304, 2756630, 5237597, 5513260, 10475194, 11026520, 20950388, 26187985, 41900776, 52375970, 104751940, 209503880]

約数ペア:

[(1, 209503880), (2, 104751940), (4, 52375970), (5, 41900776), (8, 26187985), (10, 20950388), (19, 11026520), (20, 10475194), (38, 5513260), (40, 5237597), (76, 2756630), (95, 2205304), (152, 1378315), (181, 1157480), (190, 1102652), (362, 578740), (380, 551326), (724, 289370), (760, 275663), (905, 231496), (1448, 144685), (1523, 137560), (1810, 115748), (3046, 68780), (3439, 60920), (3620, 57874), (6092, 34390), (6878, 30460), (7240, 28937), (7615, 27512), (12184, 17195), (13756, 15230)]