51991440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{12743}}^1$

素因数の和:12776

約数の個数: 80

約数和(自身を含む): 170667648

約数和(自身を除く): 118676208

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 48, 51, 60, 68, 80, 85, 102, 120, 136, 170, 204, 240, 255, 272, 340, 408, 510, 680, 816, 1020, 1360, 2040, 4080, 12743, 25486, 38229, 50972, 63715, 76458, 101944, 127430, 152916, 191145, 203888, 216631, 254860, 305832, 382290, 433262, 509720, 611664, 649893, 764580, 866524, 1019440, 1083155, 1299786, 1529160, 1733048, 2166310, 2599572, 3058320, 3249465, 3466096, 4332620, 5199144, 6498930, 8665240, 10398288, 12997860, 17330480, 25995720, 51991440]

約数ペア:

[(1, 51991440), (2, 25995720), (3, 17330480), (4, 12997860), (5, 10398288), (6, 8665240), (8, 6498930), (10, 5199144), (12, 4332620), (15, 3466096), (16, 3249465), (17, 3058320), (20, 2599572), (24, 2166310), (30, 1733048), (34, 1529160), (40, 1299786), (48, 1083155), (51, 1019440), (60, 866524), (68, 764580), (80, 649893), (85, 611664), (102, 509720), (120, 433262), (136, 382290), (170, 305832), (204, 254860), (240, 216631), (255, 203888), (272, 191145), (340, 152916), (408, 127430), (510, 101944), (680, 76458), (816, 63715), (1020, 50972), (1360, 38229), (2040, 25486), (4080, 12743)]