28360220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:739

約数の個数: 72

約数和(自身を含む): 70996464

約数和(自身を除く): 42636244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 49, 70, 86, 98, 140, 172, 196, 215, 245, 301, 430, 490, 602, 673, 860, 980, 1204, 1346, 1505, 2107, 2692, 3010, 3365, 4214, 4711, 6020, 6730, 8428, 9422, 10535, 13460, 18844, 21070, 23555, 28939, 32977, 42140, 47110, 57878, 65954, 94220, 115756, 131908, 144695, 164885, 202573, 289390, 329770, 405146, 578780, 659540, 810292, 1012865, 1418011, 2025730, 2836022, 4051460, 5672044, 7090055, 14180110, 28360220]

約数ペア:

[(1, 28360220), (2, 14180110), (4, 7090055), (5, 5672044), (7, 4051460), (10, 2836022), (14, 2025730), (20, 1418011), (28, 1012865), (35, 810292), (43, 659540), (49, 578780), (70, 405146), (86, 329770), (98, 289390), (140, 202573), (172, 164885), (196, 144695), (215, 131908), (245, 115756), (301, 94220), (430, 65954), (490, 57878), (602, 47110), (673, 42140), (860, 32977), (980, 28939), (1204, 23555), (1346, 21070), (1505, 18844), (2107, 13460), (2692, 10535), (3010, 9422), (3365, 8428), (4214, 6730), (4711, 6020)]