80153600

素因数分解:

$2^{10}\times 5^2\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:162

約数の個数: 132

約数和(自身を含む): 207123648

約数和(自身を除く): 126970048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 101, 124, 128, 155, 160, 200, 202, 248, 256, 310, 320, 400, 404, 496, 505, 512, 620, 640, 775, 800, 808, 992, 1010, 1024, 1240, 1280, 1550, 1600, 1616, 1984, 2020, 2480, 2525, 2560, 3100, 3131, 3200, 3232, 3968, 4040, 4960, 5050, 5120, 6200, 6262, 6400, 6464, 7936, 8080, 9920, 10100, 12400, 12524, 12800, 12928, 15655, 15872, 16160, 19840, 20200, 24800, 25048, 25600, 25856, 31310, 31744, 32320, 39680, 40400, 49600, 50096, 51712, 62620, 64640, 78275, 79360, 80800, 99200, 100192, 103424, 125240, 129280, 156550, 158720, 161600, 198400, 200384, 250480, 258560, 313100, 323200, 396800, 400768, 500960, 517120, 626200, 646400, 793600, 801536, 1001920, 1252400, 1292800, 1603072, 2003840, 2504800, 2585600, 3206144, 4007680, 5009600, 8015360, 10019200, 16030720, 20038400, 40076800, 80153600]

約数ペア:

[(1, 80153600), (2, 40076800), (4, 20038400), (5, 16030720), (8, 10019200), (10, 8015360), (16, 5009600), (20, 4007680), (25, 3206144), (31, 2585600), (32, 2504800), (40, 2003840), (50, 1603072), (62, 1292800), (64, 1252400), (80, 1001920), (100, 801536), (101, 793600), (124, 646400), (128, 626200), (155, 517120), (160, 500960), (200, 400768), (202, 396800), (248, 323200), (256, 313100), (310, 258560), (320, 250480), (400, 200384), (404, 198400), (496, 161600), (505, 158720), (512, 156550), (620, 129280), (640, 125240), (775, 103424), (800, 100192), (808, 99200), (992, 80800), (1010, 79360), (1024, 78275), (1240, 64640), (1280, 62620), (1550, 51712), (1600, 50096), (1616, 49600), (1984, 40400), (2020, 39680), (2480, 32320), (2525, 31744), (2560, 31310), (3100, 25856), (3131, 25600), (3200, 25048), (3232, 24800), (3968, 20200), (4040, 19840), (4960, 16160), (5050, 15872), (5120, 15655), (6200, 12928), (6262, 12800), (6400, 12524), (6464, 12400), (7936, 10100), (8080, 9920)]