28439640

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1549}}^1$

素因数の和:1586

約数の個数: 128

約数和(自身を含む): 100440000

約数和(自身を除く): 72000360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 27, 30, 34, 36, 40, 45, 51, 54, 60, 68, 72, 85, 90, 102, 108, 120, 135, 136, 153, 170, 180, 204, 216, 255, 270, 306, 340, 360, 408, 459, 510, 540, 612, 680, 765, 918, 1020, 1080, 1224, 1530, 1549, 1836, 2040, 2295, 3060, 3098, 3672, 4590, 4647, 6120, 6196, 7745, 9180, 9294, 12392, 13941, 15490, 18360, 18588, 23235, 26333, 27882, 30980, 37176, 41823, 46470, 52666, 55764, 61960, 69705, 78999, 83646, 92940, 105332, 111528, 131665, 139410, 157998, 167292, 185880, 209115, 210664, 236997, 263330, 278820, 315996, 334584, 394995, 418230, 473994, 526660, 557640, 631992, 710991, 789990, 836460, 947988, 1053320, 1184985, 1421982, 1579980, 1672920, 1895976, 2369970, 2843964, 3159960, 3554955, 4739940, 5687928, 7109910, 9479880, 14219820, 28439640]

約数ペア:

[(1, 28439640), (2, 14219820), (3, 9479880), (4, 7109910), (5, 5687928), (6, 4739940), (8, 3554955), (9, 3159960), (10, 2843964), (12, 2369970), (15, 1895976), (17, 1672920), (18, 1579980), (20, 1421982), (24, 1184985), (27, 1053320), (30, 947988), (34, 836460), (36, 789990), (40, 710991), (45, 631992), (51, 557640), (54, 526660), (60, 473994), (68, 418230), (72, 394995), (85, 334584), (90, 315996), (102, 278820), (108, 263330), (120, 236997), (135, 210664), (136, 209115), (153, 185880), (170, 167292), (180, 157998), (204, 139410), (216, 131665), (255, 111528), (270, 105332), (306, 92940), (340, 83646), (360, 78999), (408, 69705), (459, 61960), (510, 55764), (540, 52666), (612, 46470), (680, 41823), (765, 37176), (918, 30980), (1020, 27882), (1080, 26333), (1224, 23235), (1530, 18588), (1549, 18360), (1836, 15490), (2040, 13941), (2295, 12392), (3060, 9294), (3098, 9180), (3672, 7745), (4590, 6196), (4647, 6120)]