79450100

素因数分解:

$2^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1$

素因数の和:357

約数の個数: 72

約数和(自身を含む): 179597880

約数和(自身を除く): 100147780

約数列:

[1, 2, 4, 5, 10, 20, 25, 37, 50, 74, 100, 109, 148, 185, 197, 218, 370, 394, 436, 545, 740, 788, 925, 985, 1090, 1850, 1970, 2180, 2725, 3700, 3940, 4033, 4925, 5450, 7289, 8066, 9850, 10900, 14578, 16132, 19700, 20165, 21473, 29156, 36445, 40330, 42946, 72890, 80660, 85892, 100825, 107365, 145780, 182225, 201650, 214730, 364450, 403300, 429460, 536825, 728900, 794501, 1073650, 1589002, 2147300, 3178004, 3972505, 7945010, 15890020, 19862525, 39725050, 79450100]

約数ペア:

[(1, 79450100), (2, 39725050), (4, 19862525), (5, 15890020), (10, 7945010), (20, 3972505), (25, 3178004), (37, 2147300), (50, 1589002), (74, 1073650), (100, 794501), (109, 728900), (148, 536825), (185, 429460), (197, 403300), (218, 364450), (370, 214730), (394, 201650), (436, 182225), (545, 145780), (740, 107365), (788, 100825), (925, 85892), (985, 80660), (1090, 72890), (1850, 42946), (1970, 40330), (2180, 36445), (2725, 29156), (3700, 21473), (3940, 20165), (4033, 19700), (4925, 16132), (5450, 14578), (7289, 10900), (8066, 9850)]