209625920

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{461}}^1$

素因数の和:521

約数の個数: 168

約数和(自身を含む): 601995240

約数和(自身を除く): 392369320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 64, 70, 80, 98, 112, 116, 140, 145, 160, 196, 203, 224, 232, 245, 280, 290, 320, 392, 406, 448, 461, 464, 490, 560, 580, 784, 812, 922, 928, 980, 1015, 1120, 1160, 1421, 1568, 1624, 1844, 1856, 1960, 2030, 2240, 2305, 2320, 2842, 3136, 3227, 3248, 3688, 3920, 4060, 4610, 4640, 5684, 6454, 6496, 7105, 7376, 7840, 8120, 9220, 9280, 11368, 12908, 12992, 13369, 14210, 14752, 15680, 16135, 16240, 18440, 22589, 22736, 25816, 26738, 28420, 29504, 32270, 32480, 36880, 45178, 45472, 51632, 53476, 56840, 64540, 64960, 66845, 73760, 90356, 90944, 93583, 103264, 106952, 112945, 113680, 129080, 133690, 147520, 180712, 187166, 206528, 213904, 225890, 227360, 258160, 267380, 361424, 374332, 427808, 451780, 454720, 467915, 516320, 534760, 655081, 722848, 748664, 855616, 903560, 935830, 1032640, 1069520, 1310162, 1445696, 1497328, 1807120, 1871660, 2139040, 2620324, 2994656, 3275405, 3614240, 3743320, 4278080, 5240648, 5989312, 6550810, 7228480, 7486640, 10481296, 13101620, 14973280, 20962592, 26203240, 29946560, 41925184, 52406480, 104812960, 209625920]

約数ペア:

[(1, 209625920), (2, 104812960), (4, 52406480), (5, 41925184), (7, 29946560), (8, 26203240), (10, 20962592), (14, 14973280), (16, 13101620), (20, 10481296), (28, 7486640), (29, 7228480), (32, 6550810), (35, 5989312), (40, 5240648), (49, 4278080), (56, 3743320), (58, 3614240), (64, 3275405), (70, 2994656), (80, 2620324), (98, 2139040), (112, 1871660), (116, 1807120), (140, 1497328), (145, 1445696), (160, 1310162), (196, 1069520), (203, 1032640), (224, 935830), (232, 903560), (245, 855616), (280, 748664), (290, 722848), (320, 655081), (392, 534760), (406, 516320), (448, 467915), (461, 454720), (464, 451780), (490, 427808), (560, 374332), (580, 361424), (784, 267380), (812, 258160), (922, 227360), (928, 225890), (980, 213904), (1015, 206528), (1120, 187166), (1160, 180712), (1421, 147520), (1568, 133690), (1624, 129080), (1844, 113680), (1856, 112945), (1960, 106952), (2030, 103264), (2240, 93583), (2305, 90944), (2320, 90356), (2842, 73760), (3136, 66845), (3227, 64960), (3248, 64540), (3688, 56840), (3920, 53476), (4060, 51632), (4610, 45472), (4640, 45178), (5684, 36880), (6454, 32480), (6496, 32270), (7105, 29504), (7376, 28420), (7840, 26738), (8120, 25816), (9220, 22736), (9280, 22589), (11368, 18440), (12908, 16240), (12992, 16135), (13369, 15680), (14210, 14752)]