257745360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{881}}^1$

素因数の和:973

約数の個数: 160

約数和(自身を含む): 850445568

約数和(自身を除く): 592700208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 48, 53, 60, 69, 80, 92, 106, 115, 120, 138, 159, 184, 212, 230, 240, 265, 276, 318, 345, 368, 424, 460, 530, 552, 636, 690, 795, 848, 881, 920, 1060, 1104, 1219, 1272, 1380, 1590, 1762, 1840, 2120, 2438, 2544, 2643, 2760, 3180, 3524, 3657, 4240, 4405, 4876, 5286, 5520, 6095, 6360, 7048, 7314, 8810, 9752, 10572, 12190, 12720, 13215, 14096, 14628, 17620, 18285, 19504, 20263, 21144, 24380, 26430, 29256, 35240, 36570, 40526, 42288, 46693, 48760, 52860, 58512, 60789, 70480, 73140, 81052, 93386, 97520, 101315, 105720, 121578, 140079, 146280, 162104, 186772, 202630, 211440, 233465, 243156, 280158, 292560, 303945, 324208, 373544, 405260, 466930, 486312, 560316, 607890, 700395, 747088, 810520, 933860, 972624, 1073939, 1120632, 1215780, 1400790, 1621040, 1867720, 2147878, 2241264, 2431560, 2801580, 3221817, 3735440, 4295756, 4863120, 5369695, 5603160, 6443634, 8591512, 10739390, 11206320, 12887268, 16109085, 17183024, 21478780, 25774536, 32218170, 42957560, 51549072, 64436340, 85915120, 128872680, 257745360]

約数ペア:

[(1, 257745360), (2, 128872680), (3, 85915120), (4, 64436340), (5, 51549072), (6, 42957560), (8, 32218170), (10, 25774536), (12, 21478780), (15, 17183024), (16, 16109085), (20, 12887268), (23, 11206320), (24, 10739390), (30, 8591512), (40, 6443634), (46, 5603160), (48, 5369695), (53, 4863120), (60, 4295756), (69, 3735440), (80, 3221817), (92, 2801580), (106, 2431560), (115, 2241264), (120, 2147878), (138, 1867720), (159, 1621040), (184, 1400790), (212, 1215780), (230, 1120632), (240, 1073939), (265, 972624), (276, 933860), (318, 810520), (345, 747088), (368, 700395), (424, 607890), (460, 560316), (530, 486312), (552, 466930), (636, 405260), (690, 373544), (795, 324208), (848, 303945), (881, 292560), (920, 280158), (1060, 243156), (1104, 233465), (1219, 211440), (1272, 202630), (1380, 186772), (1590, 162104), (1762, 146280), (1840, 140079), (2120, 121578), (2438, 105720), (2544, 101315), (2643, 97520), (2760, 93386), (3180, 81052), (3524, 73140), (3657, 70480), (4240, 60789), (4405, 58512), (4876, 52860), (5286, 48760), (5520, 46693), (6095, 42288), (6360, 40526), (7048, 36570), (7314, 35240), (8810, 29256), (9752, 26430), (10572, 24380), (12190, 21144), (12720, 20263), (13215, 19504), (14096, 18285), (14628, 17620)]