31118200

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{431}}^1$

素因数の和:485

約数の個数: 72

約数和(自身を含む): 76535280

約数和(自身を除く): 45417080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 361, 380, 431, 475, 722, 760, 862, 950, 1444, 1724, 1805, 1900, 2155, 2888, 3448, 3610, 3800, 4310, 7220, 8189, 8620, 9025, 10775, 14440, 16378, 17240, 18050, 21550, 32756, 36100, 40945, 43100, 65512, 72200, 81890, 86200, 155591, 163780, 204725, 311182, 327560, 409450, 622364, 777955, 818900, 1244728, 1555910, 1637800, 3111820, 3889775, 6223640, 7779550, 15559100, 31118200]

約数ペア:

[(1, 31118200), (2, 15559100), (4, 7779550), (5, 6223640), (8, 3889775), (10, 3111820), (19, 1637800), (20, 1555910), (25, 1244728), (38, 818900), (40, 777955), (50, 622364), (76, 409450), (95, 327560), (100, 311182), (152, 204725), (190, 163780), (200, 155591), (361, 86200), (380, 81890), (431, 72200), (475, 65512), (722, 43100), (760, 40945), (862, 36100), (950, 32756), (1444, 21550), (1724, 18050), (1805, 17240), (1900, 16378), (2155, 14440), (2888, 10775), (3448, 9025), (3610, 8620), (3800, 8189), (4310, 7220)]