31491720

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2243}}^1$

素因数の和:2276

約数の個数: 128

約数和(自身を含む): 113097600

約数和(自身を除く): 81605880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1560, 1755, 2243, 2340, 2808, 3510, 4486, 4680, 6729, 7020, 8972, 11215, 13458, 14040, 17944, 20187, 22430, 26916, 29159, 33645, 40374, 44860, 53832, 58318, 60561, 67290, 80748, 87477, 89720, 100935, 116636, 121122, 134580, 145795, 161496, 174954, 201870, 233272, 242244, 262431, 269160, 291590, 302805, 349908, 403740, 437385, 484488, 524862, 583180, 605610, 699816, 787293, 807480, 874770, 1049724, 1166360, 1211220, 1312155, 1574586, 1749540, 2099448, 2422440, 2624310, 3149172, 3499080, 3936465, 5248620, 6298344, 7872930, 10497240, 15745860, 31491720]

約数ペア:

[(1, 31491720), (2, 15745860), (3, 10497240), (4, 7872930), (5, 6298344), (6, 5248620), (8, 3936465), (9, 3499080), (10, 3149172), (12, 2624310), (13, 2422440), (15, 2099448), (18, 1749540), (20, 1574586), (24, 1312155), (26, 1211220), (27, 1166360), (30, 1049724), (36, 874770), (39, 807480), (40, 787293), (45, 699816), (52, 605610), (54, 583180), (60, 524862), (65, 484488), (72, 437385), (78, 403740), (90, 349908), (104, 302805), (108, 291590), (117, 269160), (120, 262431), (130, 242244), (135, 233272), (156, 201870), (180, 174954), (195, 161496), (216, 145795), (234, 134580), (260, 121122), (270, 116636), (312, 100935), (351, 89720), (360, 87477), (390, 80748), (468, 67290), (520, 60561), (540, 58318), (585, 53832), (702, 44860), (780, 40374), (936, 33645), (1080, 29159), (1170, 26916), (1404, 22430), (1560, 20187), (1755, 17944), (2243, 14040), (2340, 13458), (2808, 11215), (3510, 8972), (4486, 7020), (4680, 6729)]