1800720

素因数分解:

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

素因数の和:121

約数の個数: 120

約数和(自身を含む): 6296472

約数和(自身を除く): 4495752

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 41, 45, 48, 60, 61, 72, 80, 82, 90, 120, 122, 123, 144, 164, 180, 183, 205, 240, 244, 246, 305, 328, 360, 366, 369, 410, 488, 492, 549, 610, 615, 656, 720, 732, 738, 820, 915, 976, 984, 1098, 1220, 1230, 1464, 1476, 1640, 1830, 1845, 1968, 2196, 2440, 2460, 2501, 2745, 2928, 2952, 3280, 3660, 3690, 4392, 4880, 4920, 5002, 5490, 5904, 7320, 7380, 7503, 8784, 9840, 10004, 10980, 12505, 14640, 14760, 15006, 20008, 21960, 22509, 25010, 29520, 30012, 37515, 40016, 43920, 45018, 50020, 60024, 75030, 90036, 100040, 112545, 120048, 150060, 180072, 200080, 225090, 300120, 360144, 450180, 600240, 900360, 1800720]

約数ペア:

[(1, 1800720), (2, 900360), (3, 600240), (4, 450180), (5, 360144), (6, 300120), (8, 225090), (9, 200080), (10, 180072), (12, 150060), (15, 120048), (16, 112545), (18, 100040), (20, 90036), (24, 75030), (30, 60024), (36, 50020), (40, 45018), (41, 43920), (45, 40016), (48, 37515), (60, 30012), (61, 29520), (72, 25010), (80, 22509), (82, 21960), (90, 20008), (120, 15006), (122, 14760), (123, 14640), (144, 12505), (164, 10980), (180, 10004), (183, 9840), (205, 8784), (240, 7503), (244, 7380), (246, 7320), (305, 5904), (328, 5490), (360, 5002), (366, 4920), (369, 4880), (410, 4392), (488, 3690), (492, 3660), (549, 3280), (610, 2952), (615, 2928), (656, 2745), (720, 2501), (732, 2460), (738, 2440), (820, 2196), (915, 1968), (976, 1845), (984, 1830), (1098, 1640), (1220, 1476), (1230, 1464)]