21872880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1787}}^1$

素因数の和:1823

約数の個数: 120

約数和(自身を含む): 77820912

約数和(自身を除く): 55948032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 102, 120, 136, 144, 153, 170, 180, 204, 240, 255, 272, 306, 340, 360, 408, 510, 612, 680, 720, 765, 816, 1020, 1224, 1360, 1530, 1787, 2040, 2448, 3060, 3574, 4080, 5361, 6120, 7148, 8935, 10722, 12240, 14296, 16083, 17870, 21444, 26805, 28592, 30379, 32166, 35740, 42888, 53610, 60758, 64332, 71480, 80415, 85776, 91137, 107220, 121516, 128664, 142960, 151895, 160830, 182274, 214440, 243032, 257328, 273411, 303790, 321660, 364548, 428880, 455685, 486064, 546822, 607580, 643320, 729096, 911370, 1093644, 1215160, 1286640, 1367055, 1458192, 1822740, 2187288, 2430320, 2734110, 3645480, 4374576, 5468220, 7290960, 10936440, 21872880]

約数ペア:

[(1, 21872880), (2, 10936440), (3, 7290960), (4, 5468220), (5, 4374576), (6, 3645480), (8, 2734110), (9, 2430320), (10, 2187288), (12, 1822740), (15, 1458192), (16, 1367055), (17, 1286640), (18, 1215160), (20, 1093644), (24, 911370), (30, 729096), (34, 643320), (36, 607580), (40, 546822), (45, 486064), (48, 455685), (51, 428880), (60, 364548), (68, 321660), (72, 303790), (80, 273411), (85, 257328), (90, 243032), (102, 214440), (120, 182274), (136, 160830), (144, 151895), (153, 142960), (170, 128664), (180, 121516), (204, 107220), (240, 91137), (255, 85776), (272, 80415), (306, 71480), (340, 64332), (360, 60758), (408, 53610), (510, 42888), (612, 35740), (680, 32166), (720, 30379), (765, 28592), (816, 26805), (1020, 21444), (1224, 17870), (1360, 16083), (1530, 14296), (1787, 12240), (2040, 10722), (2448, 8935), (3060, 7148), (3574, 6120), (4080, 5361)]