78631440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:249

約数の個数: 160

約数和(自身を含む): 255733632

約数和(自身を除く): 177102192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 41, 48, 60, 61, 80, 82, 120, 122, 123, 131, 164, 183, 205, 240, 244, 246, 262, 305, 328, 366, 393, 410, 488, 492, 524, 610, 615, 655, 656, 732, 786, 820, 915, 976, 984, 1048, 1220, 1230, 1310, 1464, 1572, 1640, 1830, 1965, 1968, 2096, 2440, 2460, 2501, 2620, 2928, 3144, 3280, 3660, 3930, 4880, 4920, 5002, 5240, 5371, 6288, 7320, 7503, 7860, 7991, 9840, 10004, 10480, 10742, 12505, 14640, 15006, 15720, 15982, 16113, 20008, 21484, 23973, 25010, 26855, 30012, 31440, 31964, 32226, 37515, 39955, 40016, 42968, 47946, 50020, 53710, 60024, 63928, 64452, 75030, 79910, 80565, 85936, 95892, 100040, 107420, 119865, 120048, 127856, 128904, 150060, 159820, 161130, 191784, 200080, 214840, 239730, 257808, 300120, 319640, 322260, 327631, 383568, 429680, 479460, 600240, 639280, 644520, 655262, 958920, 982893, 1289040, 1310524, 1638155, 1917840, 1965786, 2621048, 3276310, 3931572, 4914465, 5242096, 6552620, 7863144, 9828930, 13105240, 15726288, 19657860, 26210480, 39315720, 78631440]

約数ペア:

[(1, 78631440), (2, 39315720), (3, 26210480), (4, 19657860), (5, 15726288), (6, 13105240), (8, 9828930), (10, 7863144), (12, 6552620), (15, 5242096), (16, 4914465), (20, 3931572), (24, 3276310), (30, 2621048), (40, 1965786), (41, 1917840), (48, 1638155), (60, 1310524), (61, 1289040), (80, 982893), (82, 958920), (120, 655262), (122, 644520), (123, 639280), (131, 600240), (164, 479460), (183, 429680), (205, 383568), (240, 327631), (244, 322260), (246, 319640), (262, 300120), (305, 257808), (328, 239730), (366, 214840), (393, 200080), (410, 191784), (488, 161130), (492, 159820), (524, 150060), (610, 128904), (615, 127856), (655, 120048), (656, 119865), (732, 107420), (786, 100040), (820, 95892), (915, 85936), (976, 80565), (984, 79910), (1048, 75030), (1220, 64452), (1230, 63928), (1310, 60024), (1464, 53710), (1572, 50020), (1640, 47946), (1830, 42968), (1965, 40016), (1968, 39955), (2096, 37515), (2440, 32226), (2460, 31964), (2501, 31440), (2620, 30012), (2928, 26855), (3144, 25010), (3280, 23973), (3660, 21484), (3930, 20008), (4880, 16113), (4920, 15982), (5002, 15720), (5240, 15006), (5371, 14640), (6288, 12505), (7320, 10742), (7503, 10480), (7860, 10004), (7991, 9840)]