278815860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1798

約数の個数: 144

約数和(自身を含む): 903651840

約数和(自身を除く): 624835980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 174, 180, 186, 261, 279, 290, 310, 348, 372, 435, 465, 522, 558, 580, 620, 870, 899, 930, 1044, 1116, 1305, 1395, 1723, 1740, 1798, 1860, 2610, 2697, 2790, 3446, 3596, 4495, 5169, 5220, 5394, 5580, 6892, 8091, 8615, 8990, 10338, 10788, 13485, 15507, 16182, 17230, 17980, 20676, 25845, 26970, 31014, 32364, 34460, 40455, 49967, 51690, 53413, 53940, 62028, 77535, 80910, 99934, 103380, 106826, 149901, 155070, 160239, 161820, 199868, 213652, 249835, 267065, 299802, 310140, 320478, 449703, 480717, 499670, 534130, 599604, 640956, 749505, 801195, 899406, 961434, 999340, 1068260, 1499010, 1548977, 1602390, 1798812, 1922868, 2248515, 2403585, 2998020, 3097954, 3204780, 4497030, 4646931, 4807170, 6195908, 7744885, 8994060, 9293862, 9614340, 13940793, 15489770, 18587724, 23234655, 27881586, 30979540, 46469310, 55763172, 69703965, 92938620, 139407930, 278815860]

約数ペア:

[(1, 278815860), (2, 139407930), (3, 92938620), (4, 69703965), (5, 55763172), (6, 46469310), (9, 30979540), (10, 27881586), (12, 23234655), (15, 18587724), (18, 15489770), (20, 13940793), (29, 9614340), (30, 9293862), (31, 8994060), (36, 7744885), (45, 6195908), (58, 4807170), (60, 4646931), (62, 4497030), (87, 3204780), (90, 3097954), (93, 2998020), (116, 2403585), (124, 2248515), (145, 1922868), (155, 1798812), (174, 1602390), (180, 1548977), (186, 1499010), (261, 1068260), (279, 999340), (290, 961434), (310, 899406), (348, 801195), (372, 749505), (435, 640956), (465, 599604), (522, 534130), (558, 499670), (580, 480717), (620, 449703), (870, 320478), (899, 310140), (930, 299802), (1044, 267065), (1116, 249835), (1305, 213652), (1395, 199868), (1723, 161820), (1740, 160239), (1798, 155070), (1860, 149901), (2610, 106826), (2697, 103380), (2790, 99934), (3446, 80910), (3596, 77535), (4495, 62028), (5169, 53940), (5220, 53413), (5394, 51690), (5580, 49967), (6892, 40455), (8091, 34460), (8615, 32364), (8990, 31014), (10338, 26970), (10788, 25845), (13485, 20676), (15507, 17980), (16182, 17230)]