19777050

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{71}}^1\times {\mathrm{619}}^1$

素因数の和:708

約数の個数: 72

約数和(自身を含む): 53969760

約数和(自身を除く): 34192710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 71, 75, 90, 142, 150, 213, 225, 355, 426, 450, 619, 639, 710, 1065, 1238, 1278, 1775, 1857, 2130, 3095, 3195, 3550, 3714, 5325, 5571, 6190, 6390, 9285, 10650, 11142, 15475, 15975, 18570, 27855, 30950, 31950, 43949, 46425, 55710, 87898, 92850, 131847, 139275, 219745, 263694, 278550, 395541, 439490, 659235, 791082, 1098725, 1318470, 1977705, 2197450, 3296175, 3955410, 6592350, 9888525, 19777050]

約数ペア:

[(1, 19777050), (2, 9888525), (3, 6592350), (5, 3955410), (6, 3296175), (9, 2197450), (10, 1977705), (15, 1318470), (18, 1098725), (25, 791082), (30, 659235), (45, 439490), (50, 395541), (71, 278550), (75, 263694), (90, 219745), (142, 139275), (150, 131847), (213, 92850), (225, 87898), (355, 55710), (426, 46425), (450, 43949), (619, 31950), (639, 30950), (710, 27855), (1065, 18570), (1238, 15975), (1278, 15475), (1775, 11142), (1857, 10650), (2130, 9285), (3095, 6390), (3195, 6190), (3550, 5571), (3714, 5325)]