181018880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{227}}^1$

素因数の和:344

約数の個数: 144

約数和(自身を含む): 503314560

約数和(自身を除く): 322295680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 89, 112, 128, 140, 160, 178, 224, 227, 256, 280, 320, 356, 445, 448, 454, 560, 623, 640, 712, 890, 896, 908, 1120, 1135, 1246, 1280, 1424, 1589, 1780, 1792, 1816, 2240, 2270, 2492, 2848, 3115, 3178, 3560, 3632, 4480, 4540, 4984, 5696, 6230, 6356, 7120, 7264, 7945, 8960, 9080, 9968, 11392, 12460, 12712, 14240, 14528, 15890, 18160, 19936, 20203, 22784, 24920, 25424, 28480, 29056, 31780, 36320, 39872, 40406, 49840, 50848, 56960, 58112, 63560, 72640, 79744, 80812, 99680, 101015, 101696, 113920, 127120, 141421, 145280, 159488, 161624, 199360, 202030, 203392, 254240, 282842, 290560, 323248, 398720, 404060, 406784, 508480, 565684, 646496, 707105, 797440, 808120, 1016960, 1131368, 1292992, 1414210, 1616240, 2033920, 2262736, 2585984, 2828420, 3232480, 4525472, 5171968, 5656840, 6464960, 9050944, 11313680, 12929920, 18101888, 22627360, 25859840, 36203776, 45254720, 90509440, 181018880]

約数ペア:

[(1, 181018880), (2, 90509440), (4, 45254720), (5, 36203776), (7, 25859840), (8, 22627360), (10, 18101888), (14, 12929920), (16, 11313680), (20, 9050944), (28, 6464960), (32, 5656840), (35, 5171968), (40, 4525472), (56, 3232480), (64, 2828420), (70, 2585984), (80, 2262736), (89, 2033920), (112, 1616240), (128, 1414210), (140, 1292992), (160, 1131368), (178, 1016960), (224, 808120), (227, 797440), (256, 707105), (280, 646496), (320, 565684), (356, 508480), (445, 406784), (448, 404060), (454, 398720), (560, 323248), (623, 290560), (640, 282842), (712, 254240), (890, 203392), (896, 202030), (908, 199360), (1120, 161624), (1135, 159488), (1246, 145280), (1280, 141421), (1424, 127120), (1589, 113920), (1780, 101696), (1792, 101015), (1816, 99680), (2240, 80812), (2270, 79744), (2492, 72640), (2848, 63560), (3115, 58112), (3178, 56960), (3560, 50848), (3632, 49840), (4480, 40406), (4540, 39872), (4984, 36320), (5696, 31780), (6230, 29056), (6356, 28480), (7120, 25424), (7264, 24920), (7945, 22784), (8960, 20203), (9080, 19936), (9968, 18160), (11392, 15890), (12460, 14528), (12712, 14240)]