40394240

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:563

約数の個数: 80

約数和(自身を含む): 100172160

約数和(自身を除く): 59777920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 509, 512, 620, 640, 992, 1018, 1240, 1280, 1984, 2036, 2480, 2545, 2560, 3968, 4072, 4960, 5090, 7936, 8144, 9920, 10180, 15779, 15872, 16288, 19840, 20360, 31558, 32576, 39680, 40720, 63116, 65152, 78895, 79360, 81440, 126232, 130304, 157790, 162880, 252464, 260608, 315580, 325760, 504928, 631160, 651520, 1009856, 1262320, 1303040, 2019712, 2524640, 4039424, 5049280, 8078848, 10098560, 20197120, 40394240]

約数ペア:

[(1, 40394240), (2, 20197120), (4, 10098560), (5, 8078848), (8, 5049280), (10, 4039424), (16, 2524640), (20, 2019712), (31, 1303040), (32, 1262320), (40, 1009856), (62, 651520), (64, 631160), (80, 504928), (124, 325760), (128, 315580), (155, 260608), (160, 252464), (248, 162880), (256, 157790), (310, 130304), (320, 126232), (496, 81440), (509, 79360), (512, 78895), (620, 65152), (640, 63116), (992, 40720), (1018, 39680), (1240, 32576), (1280, 31558), (1984, 20360), (2036, 19840), (2480, 16288), (2545, 15872), (2560, 15779), (3968, 10180), (4072, 9920), (4960, 8144), (5090, 7936)]