254660280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1931}}^1$

素因数の和:2109

約数の個数: 128

約数和(自身を含む): 879137280

約数和(自身を除く): 624477000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 157, 168, 210, 280, 314, 420, 471, 628, 785, 840, 942, 1099, 1256, 1570, 1884, 1931, 2198, 2355, 3140, 3297, 3768, 3862, 4396, 4710, 5495, 5793, 6280, 6594, 7724, 8792, 9420, 9655, 10990, 11586, 13188, 13517, 15448, 16485, 18840, 19310, 21980, 23172, 26376, 27034, 28965, 32970, 38620, 40551, 43960, 46344, 54068, 57930, 65940, 67585, 77240, 81102, 108136, 115860, 131880, 135170, 162204, 202755, 231720, 270340, 303167, 324408, 405510, 540680, 606334, 811020, 909501, 1212668, 1515835, 1622040, 1819002, 2122169, 2425336, 3031670, 3638004, 4244338, 4547505, 6063340, 6366507, 7276008, 8488676, 9095010, 10610845, 12126680, 12733014, 16977352, 18190020, 21221690, 25466028, 31832535, 36380040, 42443380, 50932056, 63665070, 84886760, 127330140, 254660280]

約数ペア:

[(1, 254660280), (2, 127330140), (3, 84886760), (4, 63665070), (5, 50932056), (6, 42443380), (7, 36380040), (8, 31832535), (10, 25466028), (12, 21221690), (14, 18190020), (15, 16977352), (20, 12733014), (21, 12126680), (24, 10610845), (28, 9095010), (30, 8488676), (35, 7276008), (40, 6366507), (42, 6063340), (56, 4547505), (60, 4244338), (70, 3638004), (84, 3031670), (105, 2425336), (120, 2122169), (140, 1819002), (157, 1622040), (168, 1515835), (210, 1212668), (280, 909501), (314, 811020), (420, 606334), (471, 540680), (628, 405510), (785, 324408), (840, 303167), (942, 270340), (1099, 231720), (1256, 202755), (1570, 162204), (1884, 135170), (1931, 131880), (2198, 115860), (2355, 108136), (3140, 81102), (3297, 77240), (3768, 67585), (3862, 65940), (4396, 57930), (4710, 54068), (5495, 46344), (5793, 43960), (6280, 40551), (6594, 38620), (7724, 32970), (8792, 28965), (9420, 27034), (9655, 26376), (10990, 23172), (11586, 21980), (13188, 19310), (13517, 18840), (15448, 16485)]