156988880

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1297}}^1$

素因数の和:1416

約数の個数: 80

約数和(自身を含む): 391113360

約数和(自身を除く): 234124480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 89, 136, 170, 178, 272, 340, 356, 445, 680, 712, 890, 1297, 1360, 1424, 1513, 1780, 2594, 3026, 3560, 5188, 6052, 6485, 7120, 7565, 10376, 12104, 12970, 15130, 20752, 22049, 24208, 25940, 30260, 44098, 51880, 60520, 88196, 103760, 110245, 115433, 121040, 176392, 220490, 230866, 352784, 440980, 461732, 577165, 881960, 923464, 1154330, 1763920, 1846928, 1962361, 2308660, 3924722, 4617320, 7849444, 9234640, 9811805, 15698888, 19623610, 31397776, 39247220, 78494440, 156988880]

約数ペア:

[(1, 156988880), (2, 78494440), (4, 39247220), (5, 31397776), (8, 19623610), (10, 15698888), (16, 9811805), (17, 9234640), (20, 7849444), (34, 4617320), (40, 3924722), (68, 2308660), (80, 1962361), (85, 1846928), (89, 1763920), (136, 1154330), (170, 923464), (178, 881960), (272, 577165), (340, 461732), (356, 440980), (445, 352784), (680, 230866), (712, 220490), (890, 176392), (1297, 121040), (1360, 115433), (1424, 110245), (1513, 103760), (1780, 88196), (2594, 60520), (3026, 51880), (3560, 44098), (5188, 30260), (6052, 25940), (6485, 24208), (7120, 22049), (7565, 20752), (10376, 15130), (12104, 12970)]