81440040

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{599}}^1$

素因数の和:727

約数の個数: 128

約数和(自身を含む): 269568000

約数和(自身を除く): 188127960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 103, 110, 120, 132, 165, 206, 220, 264, 309, 330, 412, 440, 515, 599, 618, 660, 824, 1030, 1133, 1198, 1236, 1320, 1545, 1797, 2060, 2266, 2396, 2472, 2995, 3090, 3399, 3594, 4120, 4532, 4792, 5665, 5990, 6180, 6589, 6798, 7188, 8985, 9064, 11330, 11980, 12360, 13178, 13596, 14376, 16995, 17970, 19767, 22660, 23960, 26356, 27192, 32945, 33990, 35940, 39534, 45320, 52712, 61697, 65890, 67980, 71880, 79068, 98835, 123394, 131780, 135960, 158136, 185091, 197670, 246788, 263560, 308485, 370182, 395340, 493576, 616970, 678667, 740364, 790680, 925455, 1233940, 1357334, 1480728, 1850910, 2036001, 2467880, 2714668, 3393335, 3701820, 4072002, 5429336, 6786670, 7403640, 8144004, 10180005, 13573340, 16288008, 20360010, 27146680, 40720020, 81440040]

約数ペア:

[(1, 81440040), (2, 40720020), (3, 27146680), (4, 20360010), (5, 16288008), (6, 13573340), (8, 10180005), (10, 8144004), (11, 7403640), (12, 6786670), (15, 5429336), (20, 4072002), (22, 3701820), (24, 3393335), (30, 2714668), (33, 2467880), (40, 2036001), (44, 1850910), (55, 1480728), (60, 1357334), (66, 1233940), (88, 925455), (103, 790680), (110, 740364), (120, 678667), (132, 616970), (165, 493576), (206, 395340), (220, 370182), (264, 308485), (309, 263560), (330, 246788), (412, 197670), (440, 185091), (515, 158136), (599, 135960), (618, 131780), (660, 123394), (824, 98835), (1030, 79068), (1133, 71880), (1198, 67980), (1236, 65890), (1320, 61697), (1545, 52712), (1797, 45320), (2060, 39534), (2266, 35940), (2396, 33990), (2472, 32945), (2995, 27192), (3090, 26356), (3399, 23960), (3594, 22660), (4120, 19767), (4532, 17970), (4792, 16995), (5665, 14376), (5990, 13596), (6180, 13178), (6589, 12360), (6798, 11980), (7188, 11330), (8985, 9064)]