8018900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:173

約数の個数: 72

約数和(自身を含む): 18983160

約数和(自身を除く): 10964260

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 89, 100, 106, 170, 178, 212, 265, 340, 356, 425, 445, 530, 850, 890, 901, 1060, 1325, 1513, 1700, 1780, 1802, 2225, 2650, 3026, 3604, 4450, 4505, 4717, 5300, 6052, 7565, 8900, 9010, 9434, 15130, 18020, 18868, 22525, 23585, 30260, 37825, 45050, 47170, 75650, 80189, 90100, 94340, 117925, 151300, 160378, 235850, 320756, 400945, 471700, 801890, 1603780, 2004725, 4009450, 8018900]

約数ペア:

[(1, 8018900), (2, 4009450), (4, 2004725), (5, 1603780), (10, 801890), (17, 471700), (20, 400945), (25, 320756), (34, 235850), (50, 160378), (53, 151300), (68, 117925), (85, 94340), (89, 90100), (100, 80189), (106, 75650), (170, 47170), (178, 45050), (212, 37825), (265, 30260), (340, 23585), (356, 22525), (425, 18868), (445, 18020), (530, 15130), (850, 9434), (890, 9010), (901, 8900), (1060, 7565), (1325, 6052), (1513, 5300), (1700, 4717), (1780, 4505), (1802, 4450), (2225, 3604), (2650, 3026)]