418048640

素因数分解:

$2^7\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1178

約数の個数: 128

約数和(自身を含む): 1086912000

約数和(自身を除く): 668863360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 32, 38, 40, 62, 64, 76, 80, 95, 124, 128, 152, 155, 160, 190, 248, 304, 310, 320, 380, 496, 589, 608, 620, 640, 760, 992, 1109, 1178, 1216, 1240, 1520, 1984, 2218, 2356, 2432, 2480, 2945, 3040, 3968, 4436, 4712, 4960, 5545, 5890, 6080, 8872, 9424, 9920, 11090, 11780, 12160, 17744, 18848, 19840, 21071, 22180, 23560, 34379, 35488, 37696, 42142, 44360, 47120, 68758, 70976, 75392, 84284, 88720, 94240, 105355, 137516, 141952, 168568, 171895, 177440, 188480, 210710, 275032, 337136, 343790, 354880, 376960, 421420, 550064, 653201, 674272, 687580, 709760, 842840, 1100128, 1306402, 1348544, 1375160, 1685680, 2200256, 2612804, 2697088, 2750320, 3266005, 3371360, 4400512, 5225608, 5500640, 6532010, 6742720, 10451216, 11001280, 13064020, 13485440, 20902432, 22002560, 26128040, 41804864, 52256080, 83609728, 104512160, 209024320, 418048640]

約数ペア:

[(1, 418048640), (2, 209024320), (4, 104512160), (5, 83609728), (8, 52256080), (10, 41804864), (16, 26128040), (19, 22002560), (20, 20902432), (31, 13485440), (32, 13064020), (38, 11001280), (40, 10451216), (62, 6742720), (64, 6532010), (76, 5500640), (80, 5225608), (95, 4400512), (124, 3371360), (128, 3266005), (152, 2750320), (155, 2697088), (160, 2612804), (190, 2200256), (248, 1685680), (304, 1375160), (310, 1348544), (320, 1306402), (380, 1100128), (496, 842840), (589, 709760), (608, 687580), (620, 674272), (640, 653201), (760, 550064), (992, 421420), (1109, 376960), (1178, 354880), (1216, 343790), (1240, 337136), (1520, 275032), (1984, 210710), (2218, 188480), (2356, 177440), (2432, 171895), (2480, 168568), (2945, 141952), (3040, 137516), (3968, 105355), (4436, 94240), (4712, 88720), (4960, 84284), (5545, 75392), (5890, 70976), (6080, 68758), (8872, 47120), (9424, 44360), (9920, 42142), (11090, 37696), (11780, 35488), (12160, 34379), (17744, 23560), (18848, 22180), (19840, 21071)]