12780360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:419

約数の個数: 96

約数和(自身を含む): 42007680

約数和(自身を除く): 29227320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 131, 180, 262, 271, 360, 393, 524, 542, 655, 786, 813, 1048, 1084, 1179, 1310, 1355, 1572, 1626, 1965, 2168, 2358, 2439, 2620, 2710, 3144, 3252, 3930, 4065, 4716, 4878, 5240, 5420, 5895, 6504, 7860, 8130, 9432, 9756, 10840, 11790, 12195, 15720, 16260, 19512, 23580, 24390, 32520, 35501, 47160, 48780, 71002, 97560, 106503, 142004, 177505, 213006, 284008, 319509, 355010, 426012, 532515, 639018, 710020, 852024, 1065030, 1278036, 1420040, 1597545, 2130060, 2556072, 3195090, 4260120, 6390180, 12780360]

約数ペア:

[(1, 12780360), (2, 6390180), (3, 4260120), (4, 3195090), (5, 2556072), (6, 2130060), (8, 1597545), (9, 1420040), (10, 1278036), (12, 1065030), (15, 852024), (18, 710020), (20, 639018), (24, 532515), (30, 426012), (36, 355010), (40, 319509), (45, 284008), (60, 213006), (72, 177505), (90, 142004), (120, 106503), (131, 97560), (180, 71002), (262, 48780), (271, 47160), (360, 35501), (393, 32520), (524, 24390), (542, 23580), (655, 19512), (786, 16260), (813, 15720), (1048, 12195), (1084, 11790), (1179, 10840), (1310, 9756), (1355, 9432), (1572, 8130), (1626, 7860), (1965, 6504), (2168, 5895), (2358, 5420), (2439, 5240), (2620, 4878), (2710, 4716), (3144, 4065), (3252, 3930)]