221535720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{87911}}^1$

素因数の和:87935

約数の個数: 96

約数和(自身を含む): 822856320

約数和(自身を除く): 601320600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 87911, 175822, 263733, 351644, 439555, 527466, 615377, 703288, 791199, 879110, 1054932, 1230754, 1318665, 1582398, 1758220, 1846131, 2109864, 2461508, 2637330, 3076885, 3164796, 3516440, 3692262, 3955995, 4923016, 5274660, 5538393, 6153770, 6329592, 7384524, 7911990, 9230655, 10549320, 11076786, 12307540, 14769048, 15823980, 18461310, 22153572, 24615080, 27691965, 31647960, 36922620, 44307144, 55383930, 73845240, 110767860, 221535720]

約数ペア:

[(1, 221535720), (2, 110767860), (3, 73845240), (4, 55383930), (5, 44307144), (6, 36922620), (7, 31647960), (8, 27691965), (9, 24615080), (10, 22153572), (12, 18461310), (14, 15823980), (15, 14769048), (18, 12307540), (20, 11076786), (21, 10549320), (24, 9230655), (28, 7911990), (30, 7384524), (35, 6329592), (36, 6153770), (40, 5538393), (42, 5274660), (45, 4923016), (56, 3955995), (60, 3692262), (63, 3516440), (70, 3164796), (72, 3076885), (84, 2637330), (90, 2461508), (105, 2109864), (120, 1846131), (126, 1758220), (140, 1582398), (168, 1318665), (180, 1230754), (210, 1054932), (252, 879110), (280, 791199), (315, 703288), (360, 615377), (420, 527466), (504, 439555), (630, 351644), (840, 263733), (1260, 175822), (2520, 87911)]