20189880720

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{19037}}^1$

素因数の和:19550

約数の個数: 160

約数和(自身を含む): 69688218240

約数和(自身を除く): 49498337520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 491, 540, 720, 982, 1080, 1473, 1964, 2160, 2455, 2946, 3928, 4419, 4910, 5892, 7365, 7856, 8838, 9820, 11784, 13257, 14730, 17676, 19037, 19640, 22095, 23568, 26514, 29460, 35352, 38074, 39280, 44190, 53028, 57111, 58920, 66285, 70704, 76148, 88380, 95185, 106056, 114222, 117840, 132570, 152296, 171333, 176760, 190370, 212112, 228444, 265140, 285555, 304592, 342666, 353520, 380740, 456888, 513999, 530280, 571110, 685332, 761480, 856665, 913776, 1027998, 1060560, 1142220, 1370664, 1522960, 1713330, 2055996, 2284440, 2569995, 2741328, 3426660, 4111992, 4568880, 5139990, 6853320, 8223984, 9347167, 10279980, 13706640, 18694334, 20559960, 28041501, 37388668, 41119920, 46735835, 56083002, 74777336, 84124503, 93471670, 112166004, 140207505, 149554672, 168249006, 186943340, 224332008, 252373509, 280415010, 336498012, 373886680, 420622515, 448664016, 504747018, 560830020, 672996024, 747773360, 841245030, 1009494036, 1121660040, 1261867545, 1345992048, 1682490060, 2018988072, 2243320080, 2523735090, 3364980120, 4037976144, 5047470180, 6729960240, 10094940360, 20189880720]

約数ペア:

[(1, 20189880720), (2, 10094940360), (3, 6729960240), (4, 5047470180), (5, 4037976144), (6, 3364980120), (8, 2523735090), (9, 2243320080), (10, 2018988072), (12, 1682490060), (15, 1345992048), (16, 1261867545), (18, 1121660040), (20, 1009494036), (24, 841245030), (27, 747773360), (30, 672996024), (36, 560830020), (40, 504747018), (45, 448664016), (48, 420622515), (54, 373886680), (60, 336498012), (72, 280415010), (80, 252373509), (90, 224332008), (108, 186943340), (120, 168249006), (135, 149554672), (144, 140207505), (180, 112166004), (216, 93471670), (240, 84124503), (270, 74777336), (360, 56083002), (432, 46735835), (491, 41119920), (540, 37388668), (720, 28041501), (982, 20559960), (1080, 18694334), (1473, 13706640), (1964, 10279980), (2160, 9347167), (2455, 8223984), (2946, 6853320), (3928, 5139990), (4419, 4568880), (4910, 4111992), (5892, 3426660), (7365, 2741328), (7856, 2569995), (8838, 2284440), (9820, 2055996), (11784, 1713330), (13257, 1522960), (14730, 1370664), (17676, 1142220), (19037, 1060560), (19640, 1027998), (22095, 913776), (23568, 856665), (26514, 761480), (29460, 685332), (35352, 571110), (38074, 530280), (39280, 513999), (44190, 456888), (53028, 380740), (57111, 353520), (58920, 342666), (66285, 304592), (70704, 285555), (76148, 265140), (88380, 228444), (95185, 212112), (106056, 190370), (114222, 176760), (117840, 171333), (132570, 152296)]