1721835520

素因数分解:

$2^{13}\times 5^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:489

約数の個数: 112

約数和(自身を含む): 4177271808

約数和(自身を除く): 2455436288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 331, 508, 512, 635, 640, 662, 1016, 1024, 1270, 1280, 1324, 1655, 2032, 2048, 2540, 2560, 2648, 3310, 4064, 4096, 5080, 5120, 5296, 6620, 8128, 8192, 10160, 10240, 10592, 13240, 16256, 20320, 20480, 21184, 26480, 32512, 40640, 40960, 42037, 42368, 52960, 65024, 81280, 84074, 84736, 105920, 130048, 162560, 168148, 169472, 210185, 211840, 260096, 325120, 336296, 338944, 420370, 423680, 520192, 650240, 672592, 677888, 840740, 847360, 1040384, 1300480, 1345184, 1355776, 1681480, 1694720, 2600960, 2690368, 2711552, 3362960, 3389440, 5201920, 5380736, 6725920, 6778880, 10761472, 13451840, 13557760, 21522944, 26903680, 43045888, 53807360, 86091776, 107614720, 172183552, 215229440, 344367104, 430458880, 860917760, 1721835520]

約数ペア:

[(1, 1721835520), (2, 860917760), (4, 430458880), (5, 344367104), (8, 215229440), (10, 172183552), (16, 107614720), (20, 86091776), (32, 53807360), (40, 43045888), (64, 26903680), (80, 21522944), (127, 13557760), (128, 13451840), (160, 10761472), (254, 6778880), (256, 6725920), (320, 5380736), (331, 5201920), (508, 3389440), (512, 3362960), (635, 2711552), (640, 2690368), (662, 2600960), (1016, 1694720), (1024, 1681480), (1270, 1355776), (1280, 1345184), (1324, 1300480), (1655, 1040384), (2032, 847360), (2048, 840740), (2540, 677888), (2560, 672592), (2648, 650240), (3310, 520192), (4064, 423680), (4096, 420370), (5080, 338944), (5120, 336296), (5296, 325120), (6620, 260096), (8128, 211840), (8192, 210185), (10160, 169472), (10240, 168148), (10592, 162560), (13240, 130048), (16256, 105920), (20320, 84736), (20480, 84074), (21184, 81280), (26480, 65024), (32512, 52960), (40640, 42368), (40960, 42037)]