278437040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:467

約数の個数: 160

約数和(自身を含む): 783568896

約数和(自身を除く): 505131856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 43, 56, 62, 70, 80, 86, 112, 124, 140, 155, 172, 215, 217, 248, 280, 301, 310, 344, 373, 430, 434, 496, 560, 602, 620, 688, 746, 860, 868, 1085, 1204, 1240, 1333, 1492, 1505, 1720, 1736, 1865, 2170, 2408, 2480, 2611, 2666, 2984, 3010, 3440, 3472, 3730, 4340, 4816, 5222, 5332, 5968, 6020, 6665, 7460, 8680, 9331, 10444, 10664, 11563, 12040, 13055, 13330, 14920, 16039, 17360, 18662, 20888, 21328, 23126, 24080, 26110, 26660, 29840, 32078, 37324, 41776, 46252, 46655, 52220, 53320, 57815, 64156, 74648, 80195, 80941, 92504, 93310, 104440, 106640, 112273, 115630, 128312, 149296, 160390, 161882, 185008, 186620, 208880, 224546, 231260, 256624, 320780, 323764, 373240, 404705, 449092, 462520, 497209, 561365, 641560, 647528, 746480, 809410, 898184, 925040, 994418, 1122730, 1283120, 1295056, 1618820, 1796368, 1988836, 2245460, 2486045, 3237640, 3480463, 3977672, 4490920, 4972090, 6475280, 6960926, 7955344, 8981840, 9944180, 13921852, 17402315, 19888360, 27843704, 34804630, 39776720, 55687408, 69609260, 139218520, 278437040]

約数ペア:

[(1, 278437040), (2, 139218520), (4, 69609260), (5, 55687408), (7, 39776720), (8, 34804630), (10, 27843704), (14, 19888360), (16, 17402315), (20, 13921852), (28, 9944180), (31, 8981840), (35, 7955344), (40, 6960926), (43, 6475280), (56, 4972090), (62, 4490920), (70, 3977672), (80, 3480463), (86, 3237640), (112, 2486045), (124, 2245460), (140, 1988836), (155, 1796368), (172, 1618820), (215, 1295056), (217, 1283120), (248, 1122730), (280, 994418), (301, 925040), (310, 898184), (344, 809410), (373, 746480), (430, 647528), (434, 641560), (496, 561365), (560, 497209), (602, 462520), (620, 449092), (688, 404705), (746, 373240), (860, 323764), (868, 320780), (1085, 256624), (1204, 231260), (1240, 224546), (1333, 208880), (1492, 186620), (1505, 185008), (1720, 161882), (1736, 160390), (1865, 149296), (2170, 128312), (2408, 115630), (2480, 112273), (2611, 106640), (2666, 104440), (2984, 93310), (3010, 92504), (3440, 80941), (3472, 80195), (3730, 74648), (4340, 64156), (4816, 57815), (5222, 53320), (5332, 52220), (5968, 46655), (6020, 46252), (6665, 41776), (7460, 37324), (8680, 32078), (9331, 29840), (10444, 26660), (10664, 26110), (11563, 24080), (12040, 23126), (13055, 21328), (13330, 20888), (14920, 18662), (16039, 17360)]