21984289080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2851}}^1\times {\mathrm{4943}}^1$

素因数の和:7821

約数の個数: 128

約数和(自身を含む): 71065451520

約数和(自身を除く): 49081162440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 2851, 4943, 5702, 8553, 9886, 11404, 14255, 14829, 17106, 19772, 22808, 24715, 28510, 29658, 34212, 37063, 39544, 42765, 49430, 57020, 59316, 64259, 68424, 74126, 74145, 85530, 98860, 111189, 114040, 118632, 128518, 148252, 148290, 171060, 185315, 192777, 197720, 222378, 257036, 296504, 296580, 321295, 342120, 370630, 385554, 444756, 514072, 555945, 593160, 642590, 741260, 771108, 889512, 963885, 1111890, 1285180, 1482520, 1542216, 1927770, 2223780, 2570360, 3855540, 4447560, 7711080, 14092493, 28184986, 42277479, 56369972, 70462465, 84554958, 112739944, 140924930, 169109916, 183202409, 211387395, 281849860, 338219832, 366404818, 422774790, 549607227, 563699720, 732809636, 845549580, 916012045, 1099214454, 1465619272, 1691099160, 1832024090, 2198428908, 2748036135, 3664048180, 4396857816, 5496072270, 7328096360, 10992144540, 21984289080]

約数ペア:

[(1, 21984289080), (2, 10992144540), (3, 7328096360), (4, 5496072270), (5, 4396857816), (6, 3664048180), (8, 2748036135), (10, 2198428908), (12, 1832024090), (13, 1691099160), (15, 1465619272), (20, 1099214454), (24, 916012045), (26, 845549580), (30, 732809636), (39, 563699720), (40, 549607227), (52, 422774790), (60, 366404818), (65, 338219832), (78, 281849860), (104, 211387395), (120, 183202409), (130, 169109916), (156, 140924930), (195, 112739944), (260, 84554958), (312, 70462465), (390, 56369972), (520, 42277479), (780, 28184986), (1560, 14092493), (2851, 7711080), (4943, 4447560), (5702, 3855540), (8553, 2570360), (9886, 2223780), (11404, 1927770), (14255, 1542216), (14829, 1482520), (17106, 1285180), (19772, 1111890), (22808, 963885), (24715, 889512), (28510, 771108), (29658, 741260), (34212, 642590), (37063, 593160), (39544, 555945), (42765, 514072), (49430, 444756), (57020, 385554), (59316, 370630), (64259, 342120), (68424, 321295), (74126, 296580), (74145, 296504), (85530, 257036), (98860, 222378), (111189, 197720), (114040, 192777), (118632, 185315), (128518, 171060), (148252, 148290)]