80788480

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1$

素因数の和:565

約数の個数: 88

約数和(自身を含む): 200442240

約数和(自身を除く): 119653760

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, 1024, 1240, 1280, 1984, 2036, 2480, 2545, 2560, 3968, 4072, 4960, 5090, 5120, 7936, 8144, 9920, 10180, 15779, 15872, 16288, 19840, 20360, 31558, 31744, 32576, 39680, 40720, 63116, 65152, 78895, 79360, 81440, 126232, 130304, 157790, 158720, 162880, 252464, 260608, 315580, 325760, 504928, 521216, 631160, 651520, 1009856, 1262320, 1303040, 2019712, 2524640, 2606080, 4039424, 5049280, 8078848, 10098560, 16157696, 20197120, 40394240, 80788480]

約数ペア:

[(1, 80788480), (2, 40394240), (4, 20197120), (5, 16157696), (8, 10098560), (10, 8078848), (16, 5049280), (20, 4039424), (31, 2606080), (32, 2524640), (40, 2019712), (62, 1303040), (64, 1262320), (80, 1009856), (124, 651520), (128, 631160), (155, 521216), (160, 504928), (248, 325760), (256, 315580), (310, 260608), (320, 252464), (496, 162880), (509, 158720), (512, 157790), (620, 130304), (640, 126232), (992, 81440), (1018, 79360), (1024, 78895), (1240, 65152), (1280, 63116), (1984, 40720), (2036, 39680), (2480, 32576), (2545, 31744), (2560, 31558), (3968, 20360), (4072, 19840), (4960, 16288), (5090, 15872), (5120, 15779), (7936, 10180), (8144, 9920)]