21357456320

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{23509}}^1$

素因数の和:23710

約数の個数: 112

約数和(自身を含む): 54173810880

約数和(自身を除く): 32816354560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 136, 160, 167, 170, 272, 320, 334, 340, 544, 668, 680, 835, 1088, 1336, 1360, 1670, 2672, 2720, 2839, 3340, 5344, 5440, 5678, 6680, 10688, 11356, 13360, 14195, 22712, 23509, 26720, 28390, 45424, 47018, 53440, 56780, 90848, 94036, 113560, 117545, 181696, 188072, 227120, 235090, 376144, 399653, 454240, 470180, 752288, 799306, 908480, 940360, 1504576, 1598612, 1880720, 1998265, 3197224, 3761440, 3926003, 3996530, 6394448, 7522880, 7852006, 7993060, 12788896, 15704012, 15986120, 19630015, 25577792, 31408024, 31972240, 39260030, 62816048, 63944480, 66742051, 78520060, 125632096, 127888960, 133484102, 157040120, 251264192, 266968204, 314080240, 333710255, 533936408, 628160480, 667420510, 1067872816, 1256320960, 1334841020, 2135745632, 2669682040, 4271491264, 5339364080, 10678728160, 21357456320]

約数ペア:

[(1, 21357456320), (2, 10678728160), (4, 5339364080), (5, 4271491264), (8, 2669682040), (10, 2135745632), (16, 1334841020), (17, 1256320960), (20, 1067872816), (32, 667420510), (34, 628160480), (40, 533936408), (64, 333710255), (68, 314080240), (80, 266968204), (85, 251264192), (136, 157040120), (160, 133484102), (167, 127888960), (170, 125632096), (272, 78520060), (320, 66742051), (334, 63944480), (340, 62816048), (544, 39260030), (668, 31972240), (680, 31408024), (835, 25577792), (1088, 19630015), (1336, 15986120), (1360, 15704012), (1670, 12788896), (2672, 7993060), (2720, 7852006), (2839, 7522880), (3340, 6394448), (5344, 3996530), (5440, 3926003), (5678, 3761440), (6680, 3197224), (10688, 1998265), (11356, 1880720), (13360, 1598612), (14195, 1504576), (22712, 940360), (23509, 908480), (26720, 799306), (28390, 752288), (45424, 470180), (47018, 454240), (53440, 399653), (56780, 376144), (90848, 235090), (94036, 227120), (113560, 188072), (117545, 181696)]