71313920

素因数分解:

$2^9\times 5^1\times {\mathrm{89}}^1\times {\mathrm{313}}^1$

素因数の和:425

約数の個数: 80

約数和(自身を含む): 173459880

約数和(自身を除く): 102145960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 256, 313, 320, 356, 445, 512, 626, 640, 712, 890, 1252, 1280, 1424, 1565, 1780, 2504, 2560, 2848, 3130, 3560, 5008, 5696, 6260, 7120, 10016, 11392, 12520, 14240, 20032, 22784, 25040, 27857, 28480, 40064, 45568, 50080, 55714, 56960, 80128, 100160, 111428, 113920, 139285, 160256, 200320, 222856, 227840, 278570, 400640, 445712, 557140, 801280, 891424, 1114280, 1782848, 2228560, 3565696, 4457120, 7131392, 8914240, 14262784, 17828480, 35656960, 71313920]

約数ペア:

[(1, 71313920), (2, 35656960), (4, 17828480), (5, 14262784), (8, 8914240), (10, 7131392), (16, 4457120), (20, 3565696), (32, 2228560), (40, 1782848), (64, 1114280), (80, 891424), (89, 801280), (128, 557140), (160, 445712), (178, 400640), (256, 278570), (313, 227840), (320, 222856), (356, 200320), (445, 160256), (512, 139285), (626, 113920), (640, 111428), (712, 100160), (890, 80128), (1252, 56960), (1280, 55714), (1424, 50080), (1565, 45568), (1780, 40064), (2504, 28480), (2560, 27857), (2848, 25040), (3130, 22784), (3560, 20032), (5008, 14240), (5696, 12520), (6260, 11392), (7120, 10016)]