259921480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{101}}^2$

素因数の和:240

約数の個数: 144

約数和(自身を含む): 739961460

約数和(自身を除く): 480039980

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 91, 98, 101, 104, 130, 140, 182, 196, 202, 245, 260, 280, 364, 392, 404, 455, 490, 505, 520, 637, 707, 728, 808, 910, 980, 1010, 1274, 1313, 1414, 1820, 1960, 2020, 2548, 2626, 2828, 3185, 3535, 3640, 4040, 4949, 5096, 5252, 5656, 6370, 6565, 7070, 9191, 9898, 10201, 10504, 12740, 13130, 14140, 18382, 19796, 20402, 24745, 25480, 26260, 28280, 36764, 39592, 40804, 45955, 49490, 51005, 52520, 64337, 71407, 73528, 81608, 91910, 98980, 102010, 128674, 132613, 142814, 183820, 197960, 204020, 257348, 265226, 285628, 321685, 357035, 367640, 408040, 499849, 514696, 530452, 571256, 643370, 663065, 714070, 928291, 999698, 1060904, 1286740, 1326130, 1428140, 1856582, 1999396, 2499245, 2573480, 2652260, 2856280, 3713164, 3998792, 4641455, 4998490, 5304520, 6498037, 7426328, 9282910, 9996980, 12996074, 18565820, 19993960, 25992148, 32490185, 37131640, 51984296, 64980370, 129960740, 259921480]

約数ペア:

[(1, 259921480), (2, 129960740), (4, 64980370), (5, 51984296), (7, 37131640), (8, 32490185), (10, 25992148), (13, 19993960), (14, 18565820), (20, 12996074), (26, 9996980), (28, 9282910), (35, 7426328), (40, 6498037), (49, 5304520), (52, 4998490), (56, 4641455), (65, 3998792), (70, 3713164), (91, 2856280), (98, 2652260), (101, 2573480), (104, 2499245), (130, 1999396), (140, 1856582), (182, 1428140), (196, 1326130), (202, 1286740), (245, 1060904), (260, 999698), (280, 928291), (364, 714070), (392, 663065), (404, 643370), (455, 571256), (490, 530452), (505, 514696), (520, 499849), (637, 408040), (707, 367640), (728, 357035), (808, 321685), (910, 285628), (980, 265226), (1010, 257348), (1274, 204020), (1313, 197960), (1414, 183820), (1820, 142814), (1960, 132613), (2020, 128674), (2548, 102010), (2626, 98980), (2828, 91910), (3185, 81608), (3535, 73528), (3640, 71407), (4040, 64337), (4949, 52520), (5096, 51005), (5252, 49490), (5656, 45955), (6370, 40804), (6565, 39592), (7070, 36764), (9191, 28280), (9898, 26260), (10201, 25480), (10504, 24745), (12740, 20402), (13130, 19796), (14140, 18382)]