205239720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{244333}}^1$

素因数の和:244354

約数の個数: 64

約数和(自身を含む): 703681920

約数和(自身を除く): 498442200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 244333, 488666, 732999, 977332, 1221665, 1465998, 1710331, 1954664, 2443330, 2931996, 3420662, 3664995, 4886660, 5130993, 5863992, 6841324, 7329990, 8551655, 9773320, 10261986, 13682648, 14659980, 17103310, 20523972, 25654965, 29319960, 34206620, 41047944, 51309930, 68413240, 102619860, 205239720]

約数ペア:

[(1, 205239720), (2, 102619860), (3, 68413240), (4, 51309930), (5, 41047944), (6, 34206620), (7, 29319960), (8, 25654965), (10, 20523972), (12, 17103310), (14, 14659980), (15, 13682648), (20, 10261986), (21, 9773320), (24, 8551655), (28, 7329990), (30, 6841324), (35, 5863992), (40, 5130993), (42, 4886660), (56, 3664995), (60, 3420662), (70, 2931996), (84, 2443330), (105, 1954664), (120, 1710331), (140, 1465998), (168, 1221665), (210, 977332), (280, 732999), (420, 488666), (840, 244333)]