81884300

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{607}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 189987840

約数和(自身を除く): 108103540

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 71, 76, 95, 100, 142, 190, 284, 355, 380, 475, 607, 710, 950, 1214, 1349, 1420, 1775, 1900, 2428, 2698, 3035, 3550, 5396, 6070, 6745, 7100, 11533, 12140, 13490, 15175, 23066, 26980, 30350, 33725, 43097, 46132, 57665, 60700, 67450, 86194, 115330, 134900, 172388, 215485, 230660, 288325, 430970, 576650, 818843, 861940, 1077425, 1153300, 1637686, 2154850, 3275372, 4094215, 4309700, 8188430, 16376860, 20471075, 40942150, 81884300]

約数ペア:

[(1, 81884300), (2, 40942150), (4, 20471075), (5, 16376860), (10, 8188430), (19, 4309700), (20, 4094215), (25, 3275372), (38, 2154850), (50, 1637686), (71, 1153300), (76, 1077425), (95, 861940), (100, 818843), (142, 576650), (190, 430970), (284, 288325), (355, 230660), (380, 215485), (475, 172388), (607, 134900), (710, 115330), (950, 86194), (1214, 67450), (1349, 60700), (1420, 57665), (1775, 46132), (1900, 43097), (2428, 33725), (2698, 30350), (3035, 26980), (3550, 23066), (5396, 15175), (6070, 13490), (6745, 12140), (7100, 11533)]