128572700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1427}}^1$

素因数の和:1511

約数の個数: 72

約数和(自身を含む): 301199472

約数和(自身を除く): 172626772

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 53, 68, 85, 100, 106, 170, 212, 265, 340, 425, 530, 850, 901, 1060, 1325, 1427, 1700, 1802, 2650, 2854, 3604, 4505, 5300, 5708, 7135, 9010, 14270, 18020, 22525, 24259, 28540, 35675, 45050, 48518, 71350, 75631, 90100, 97036, 121295, 142700, 151262, 242590, 302524, 378155, 485180, 606475, 756310, 1212950, 1285727, 1512620, 1890775, 2425900, 2571454, 3781550, 5142908, 6428635, 7563100, 12857270, 25714540, 32143175, 64286350, 128572700]

約数ペア:

[(1, 128572700), (2, 64286350), (4, 32143175), (5, 25714540), (10, 12857270), (17, 7563100), (20, 6428635), (25, 5142908), (34, 3781550), (50, 2571454), (53, 2425900), (68, 1890775), (85, 1512620), (100, 1285727), (106, 1212950), (170, 756310), (212, 606475), (265, 485180), (340, 378155), (425, 302524), (530, 242590), (850, 151262), (901, 142700), (1060, 121295), (1325, 97036), (1427, 90100), (1700, 75631), (1802, 71350), (2650, 48518), (2854, 45050), (3604, 35675), (4505, 28540), (5300, 24259), (5708, 22525), (7135, 18020), (9010, 14270)]