28081560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{383}}^1$

素因数の和:457

約数の個数: 128

約数和(自身を含む): 92897280

約数和(自身を除く): 64815720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 47, 52, 60, 65, 78, 94, 104, 120, 130, 141, 156, 188, 195, 235, 260, 282, 312, 376, 383, 390, 470, 520, 564, 611, 705, 766, 780, 940, 1128, 1149, 1222, 1410, 1532, 1560, 1833, 1880, 1915, 2298, 2444, 2820, 3055, 3064, 3666, 3830, 4596, 4888, 4979, 5640, 5745, 6110, 7332, 7660, 9165, 9192, 9958, 11490, 12220, 14664, 14937, 15320, 18001, 18330, 19916, 22980, 24440, 24895, 29874, 36002, 36660, 39832, 45960, 49790, 54003, 59748, 72004, 73320, 74685, 90005, 99580, 108006, 119496, 144008, 149370, 180010, 199160, 216012, 234013, 270015, 298740, 360020, 432024, 468026, 540030, 597480, 702039, 720040, 936052, 1080060, 1170065, 1404078, 1872104, 2160120, 2340130, 2808156, 3510195, 4680260, 5616312, 7020390, 9360520, 14040780, 28081560]

約数ペア:

[(1, 28081560), (2, 14040780), (3, 9360520), (4, 7020390), (5, 5616312), (6, 4680260), (8, 3510195), (10, 2808156), (12, 2340130), (13, 2160120), (15, 1872104), (20, 1404078), (24, 1170065), (26, 1080060), (30, 936052), (39, 720040), (40, 702039), (47, 597480), (52, 540030), (60, 468026), (65, 432024), (78, 360020), (94, 298740), (104, 270015), (120, 234013), (130, 216012), (141, 199160), (156, 180010), (188, 149370), (195, 144008), (235, 119496), (260, 108006), (282, 99580), (312, 90005), (376, 74685), (383, 73320), (390, 72004), (470, 59748), (520, 54003), (564, 49790), (611, 45960), (705, 39832), (766, 36660), (780, 36002), (940, 29874), (1128, 24895), (1149, 24440), (1222, 22980), (1410, 19916), (1532, 18330), (1560, 18001), (1833, 15320), (1880, 14937), (1915, 14664), (2298, 12220), (2444, 11490), (2820, 9958), (3055, 9192), (3064, 9165), (3666, 7660), (3830, 7332), (4596, 6110), (4888, 5745), (4979, 5640)]