144781900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{421}}^1$

素因数の和:635

約数の個数: 72

約数和(自身を含む): 333329360

約数和(自身を除く): 188547460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 181, 190, 362, 380, 421, 475, 724, 842, 905, 950, 1684, 1810, 1900, 2105, 3439, 3620, 4210, 4525, 6878, 7999, 8420, 9050, 10525, 13756, 15998, 17195, 18100, 21050, 31996, 34390, 39995, 42100, 68780, 76201, 79990, 85975, 152402, 159980, 171950, 199975, 304804, 343900, 381005, 399950, 762010, 799900, 1447819, 1524020, 1905025, 2895638, 3810050, 5791276, 7239095, 7620100, 14478190, 28956380, 36195475, 72390950, 144781900]

約数ペア:

[(1, 144781900), (2, 72390950), (4, 36195475), (5, 28956380), (10, 14478190), (19, 7620100), (20, 7239095), (25, 5791276), (38, 3810050), (50, 2895638), (76, 1905025), (95, 1524020), (100, 1447819), (181, 799900), (190, 762010), (362, 399950), (380, 381005), (421, 343900), (475, 304804), (724, 199975), (842, 171950), (905, 159980), (950, 152402), (1684, 85975), (1810, 79990), (1900, 76201), (2105, 68780), (3439, 42100), (3620, 39995), (4210, 34390), (4525, 31996), (6878, 21050), (7999, 18100), (8420, 17195), (9050, 15998), (10525, 13756)]