1440720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:74

約数の個数: 160

約数和(自身を含む): 5356800

約数和(自身を除く): 3916080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 29, 30, 36, 40, 45, 46, 48, 54, 58, 60, 69, 72, 80, 87, 90, 92, 108, 115, 116, 120, 135, 138, 144, 145, 174, 180, 184, 207, 216, 230, 232, 240, 261, 270, 276, 290, 345, 348, 360, 368, 414, 432, 435, 460, 464, 522, 540, 552, 580, 621, 667, 690, 696, 720, 783, 828, 870, 920, 1035, 1044, 1080, 1104, 1160, 1242, 1305, 1334, 1380, 1392, 1566, 1656, 1740, 1840, 2001, 2070, 2088, 2160, 2320, 2484, 2610, 2668, 2760, 3105, 3132, 3312, 3335, 3480, 3915, 4002, 4140, 4176, 4968, 5220, 5336, 5520, 6003, 6210, 6264, 6670, 6960, 7830, 8004, 8280, 9936, 10005, 10440, 10672, 12006, 12420, 12528, 13340, 15660, 16008, 16560, 18009, 20010, 20880, 24012, 24840, 26680, 30015, 31320, 32016, 36018, 40020, 48024, 49680, 53360, 60030, 62640, 72036, 80040, 90045, 96048, 120060, 144072, 160080, 180090, 240120, 288144, 360180, 480240, 720360, 1440720]

約数ペア:

[(1, 1440720), (2, 720360), (3, 480240), (4, 360180), (5, 288144), (6, 240120), (8, 180090), (9, 160080), (10, 144072), (12, 120060), (15, 96048), (16, 90045), (18, 80040), (20, 72036), (23, 62640), (24, 60030), (27, 53360), (29, 49680), (30, 48024), (36, 40020), (40, 36018), (45, 32016), (46, 31320), (48, 30015), (54, 26680), (58, 24840), (60, 24012), (69, 20880), (72, 20010), (80, 18009), (87, 16560), (90, 16008), (92, 15660), (108, 13340), (115, 12528), (116, 12420), (120, 12006), (135, 10672), (138, 10440), (144, 10005), (145, 9936), (174, 8280), (180, 8004), (184, 7830), (207, 6960), (216, 6670), (230, 6264), (232, 6210), (240, 6003), (261, 5520), (270, 5336), (276, 5220), (290, 4968), (345, 4176), (348, 4140), (360, 4002), (368, 3915), (414, 3480), (432, 3335), (435, 3312), (460, 3132), (464, 3105), (522, 2760), (540, 2668), (552, 2610), (580, 2484), (621, 2320), (667, 2160), (690, 2088), (696, 2070), (720, 2001), (783, 1840), (828, 1740), (870, 1656), (920, 1566), (1035, 1392), (1044, 1380), (1080, 1334), (1104, 1305), (1160, 1242)]