28781700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{197}}^1\times {\mathrm{487}}^1$

素因数の和:701

約数の個数: 72

約数和(自身を含む): 83869632

約数和(自身を除く): 55087932

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 150, 197, 300, 394, 487, 591, 788, 974, 985, 1182, 1461, 1948, 1970, 2364, 2435, 2922, 2955, 3940, 4870, 4925, 5844, 5910, 7305, 9740, 9850, 11820, 12175, 14610, 14775, 19700, 24350, 29220, 29550, 36525, 48700, 59100, 73050, 95939, 146100, 191878, 287817, 383756, 479695, 575634, 959390, 1151268, 1439085, 1918780, 2398475, 2878170, 4796950, 5756340, 7195425, 9593900, 14390850, 28781700]

約数ペア:

[(1, 28781700), (2, 14390850), (3, 9593900), (4, 7195425), (5, 5756340), (6, 4796950), (10, 2878170), (12, 2398475), (15, 1918780), (20, 1439085), (25, 1151268), (30, 959390), (50, 575634), (60, 479695), (75, 383756), (100, 287817), (150, 191878), (197, 146100), (300, 95939), (394, 73050), (487, 59100), (591, 48700), (788, 36525), (974, 29550), (985, 29220), (1182, 24350), (1461, 19700), (1948, 14775), (1970, 14610), (2364, 12175), (2435, 11820), (2922, 9850), (2955, 9740), (3940, 7305), (4870, 5910), (4925, 5844)]