20128599525

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{271}}^1\times {\mathrm{1109}}^1$

素因数の和:1459

約数の個数: 96

約数和(自身を含む): 35940556800

約数和(自身を除く): 15811957275

約数列:

[1, 3, 5, 15, 19, 25, 47, 57, 75, 95, 141, 235, 271, 285, 475, 705, 813, 893, 1109, 1175, 1355, 1425, 2679, 3327, 3525, 4065, 4465, 5149, 5545, 6775, 12737, 13395, 15447, 16635, 20325, 21071, 22325, 25745, 27725, 38211, 52123, 63213, 63685, 66975, 77235, 83175, 105355, 128725, 156369, 191055, 242003, 260615, 300539, 316065, 318425, 386175, 526775, 726009, 781845, 901617, 955275, 990337, 1210015, 1303075, 1502695, 1580325, 2971011, 3630045, 3909225, 4508085, 4951685, 5710241, 6050075, 7513475, 14125333, 14855055, 17130723, 18150225, 22540425, 24758425, 28551205, 42375999, 70626665, 74275275, 85653615, 142756025, 211879995, 268381327, 353133325, 428268075, 805143981, 1059399975, 1341906635, 4025719905, 6709533175, 20128599525]

約数ペア:

[(1, 20128599525), (3, 6709533175), (5, 4025719905), (15, 1341906635), (19, 1059399975), (25, 805143981), (47, 428268075), (57, 353133325), (75, 268381327), (95, 211879995), (141, 142756025), (235, 85653615), (271, 74275275), (285, 70626665), (475, 42375999), (705, 28551205), (813, 24758425), (893, 22540425), (1109, 18150225), (1175, 17130723), (1355, 14855055), (1425, 14125333), (2679, 7513475), (3327, 6050075), (3525, 5710241), (4065, 4951685), (4465, 4508085), (5149, 3909225), (5545, 3630045), (6775, 2971011), (12737, 1580325), (13395, 1502695), (15447, 1303075), (16635, 1210015), (20325, 990337), (21071, 955275), (22325, 901617), (25745, 781845), (27725, 726009), (38211, 526775), (52123, 386175), (63213, 318425), (63685, 316065), (66975, 300539), (77235, 260615), (83175, 242003), (105355, 191055), (128725, 156369)]