220459680

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{21871}}^1$

素因数の和:21899

約数の個数: 144

約数和(自身を含む): 859832064

約数和(自身を除く): 639372384

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 21871, 43742, 65613, 87484, 109355, 131226, 153097, 174968, 196839, 218710, 262452, 306194, 328065, 349936, 393678, 437420, 459291, 524904, 612388, 656130, 699872, 765485, 787356, 874840, 918582, 984195, 1049808, 1224776, 1312260, 1377873, 1530970, 1574712, 1749680, 1837164, 1968390, 2099616, 2296455, 2449552, 2624520, 2755746, 3061940, 3149424, 3499360, 3674328, 3936780, 4592910, 4899104, 5249040, 5511492, 6123880, 6298848, 6889365, 7348656, 7873560, 9185820, 10498080, 11022984, 12247760, 13778730, 14697312, 15747120, 18371640, 22045968, 24495520, 27557460, 31494240, 36743280, 44091936, 55114920, 73486560, 110229840, 220459680]

約数ペア:

[(1, 220459680), (2, 110229840), (3, 73486560), (4, 55114920), (5, 44091936), (6, 36743280), (7, 31494240), (8, 27557460), (9, 24495520), (10, 22045968), (12, 18371640), (14, 15747120), (15, 14697312), (16, 13778730), (18, 12247760), (20, 11022984), (21, 10498080), (24, 9185820), (28, 7873560), (30, 7348656), (32, 6889365), (35, 6298848), (36, 6123880), (40, 5511492), (42, 5249040), (45, 4899104), (48, 4592910), (56, 3936780), (60, 3674328), (63, 3499360), (70, 3149424), (72, 3061940), (80, 2755746), (84, 2624520), (90, 2449552), (96, 2296455), (105, 2099616), (112, 1968390), (120, 1837164), (126, 1749680), (140, 1574712), (144, 1530970), (160, 1377873), (168, 1312260), (180, 1224776), (210, 1049808), (224, 984195), (240, 918582), (252, 874840), (280, 787356), (288, 765485), (315, 699872), (336, 656130), (360, 612388), (420, 524904), (480, 459291), (504, 437420), (560, 393678), (630, 349936), (672, 328065), (720, 306194), (840, 262452), (1008, 218710), (1120, 196839), (1260, 174968), (1440, 153097), (1680, 131226), (2016, 109355), (2520, 87484), (3360, 65613), (5040, 43742), (10080, 21871)]