261018240

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19421}}^1$

素因数の和:19450

約数の個数: 128

約数和(自身を含む): 950901120

約数和(自身を除く): 689882880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 19421, 38842, 58263, 77684, 97105, 116526, 135947, 155368, 194210, 233052, 271894, 291315, 310736, 388420, 407841, 466104, 543788, 582630, 621472, 679735, 776840, 815682, 932208, 1087576, 1165260, 1242944, 1359470, 1553680, 1631364, 1864416, 2039205, 2175152, 2330520, 2485888, 2718940, 3107360, 3262728, 3728832, 4078410, 4350304, 4661040, 5437880, 6214720, 6525456, 7457664, 8156820, 8700608, 9322080, 10875760, 12429440, 13050912, 16313640, 17401216, 18644160, 21751520, 26101824, 32627280, 37288320, 43503040, 52203648, 65254560, 87006080, 130509120, 261018240]

約数ペア:

[(1, 261018240), (2, 130509120), (3, 87006080), (4, 65254560), (5, 52203648), (6, 43503040), (7, 37288320), (8, 32627280), (10, 26101824), (12, 21751520), (14, 18644160), (15, 17401216), (16, 16313640), (20, 13050912), (21, 12429440), (24, 10875760), (28, 9322080), (30, 8700608), (32, 8156820), (35, 7457664), (40, 6525456), (42, 6214720), (48, 5437880), (56, 4661040), (60, 4350304), (64, 4078410), (70, 3728832), (80, 3262728), (84, 3107360), (96, 2718940), (105, 2485888), (112, 2330520), (120, 2175152), (128, 2039205), (140, 1864416), (160, 1631364), (168, 1553680), (192, 1359470), (210, 1242944), (224, 1165260), (240, 1087576), (280, 932208), (320, 815682), (336, 776840), (384, 679735), (420, 621472), (448, 582630), (480, 543788), (560, 466104), (640, 407841), (672, 388420), (840, 310736), (896, 291315), (960, 271894), (1120, 233052), (1344, 194210), (1680, 155368), (1920, 135947), (2240, 116526), (2688, 97105), (3360, 77684), (4480, 58263), (6720, 38842), (13440, 19421)]