31501620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 102910080

約数和(自身を除く): 71408460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 61, 76, 90, 95, 114, 122, 151, 171, 180, 183, 190, 228, 244, 285, 302, 305, 342, 366, 380, 453, 549, 570, 604, 610, 684, 732, 755, 855, 906, 915, 1098, 1140, 1159, 1220, 1359, 1510, 1710, 1812, 1830, 2196, 2265, 2318, 2718, 2745, 2869, 3020, 3420, 3477, 3660, 4530, 4636, 5436, 5490, 5738, 5795, 6795, 6954, 8607, 9060, 9211, 10431, 10980, 11476, 11590, 13590, 13908, 14345, 17214, 17385, 18422, 20862, 23180, 25821, 27180, 27633, 28690, 34428, 34770, 36844, 41724, 43035, 46055, 51642, 52155, 55266, 57380, 69540, 82899, 86070, 92110, 103284, 104310, 110532, 129105, 138165, 165798, 172140, 175009, 184220, 208620, 258210, 276330, 331596, 350018, 414495, 516420, 525027, 552660, 700036, 828990, 875045, 1050054, 1575081, 1657980, 1750090, 2100108, 2625135, 3150162, 3500180, 5250270, 6300324, 7875405, 10500540, 15750810, 31501620]

約数ペア:

[(1, 31501620), (2, 15750810), (3, 10500540), (4, 7875405), (5, 6300324), (6, 5250270), (9, 3500180), (10, 3150162), (12, 2625135), (15, 2100108), (18, 1750090), (19, 1657980), (20, 1575081), (30, 1050054), (36, 875045), (38, 828990), (45, 700036), (57, 552660), (60, 525027), (61, 516420), (76, 414495), (90, 350018), (95, 331596), (114, 276330), (122, 258210), (151, 208620), (171, 184220), (180, 175009), (183, 172140), (190, 165798), (228, 138165), (244, 129105), (285, 110532), (302, 104310), (305, 103284), (342, 92110), (366, 86070), (380, 82899), (453, 69540), (549, 57380), (570, 55266), (604, 52155), (610, 51642), (684, 46055), (732, 43035), (755, 41724), (855, 36844), (906, 34770), (915, 34428), (1098, 28690), (1140, 27633), (1159, 27180), (1220, 25821), (1359, 23180), (1510, 20862), (1710, 18422), (1812, 17385), (1830, 17214), (2196, 14345), (2265, 13908), (2318, 13590), (2718, 11590), (2745, 11476), (2869, 10980), (3020, 10431), (3420, 9211), (3477, 9060), (3660, 8607), (4530, 6954), (4636, 6795), (5436, 5795), (5490, 5738)]