39777920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:722

約数の個数: 128

約数和(自身を含む): 117210240

約数和(自身を除く): 77432320

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 683, 728, 832, 896, 910, 1040, 1120, 1366, 1456, 1664, 1820, 2080, 2240, 2732, 2912, 3415, 3640, 4160, 4480, 4781, 5464, 5824, 6830, 7280, 8320, 8879, 9562, 10928, 11648, 13660, 14560, 17758, 19124, 21856, 23905, 27320, 29120, 35516, 38248, 43712, 44395, 47810, 54640, 58240, 62153, 71032, 76496, 87424, 88790, 95620, 109280, 124306, 142064, 152992, 177580, 191240, 218560, 248612, 284128, 305984, 310765, 355160, 382480, 437120, 497224, 568256, 611968, 621530, 710320, 764960, 994448, 1136512, 1243060, 1420640, 1529920, 1988896, 2486120, 2841280, 3059840, 3977792, 4972240, 5682560, 7955584, 9944480, 19888960, 39777920]

約数ペア:

[(1, 39777920), (2, 19888960), (4, 9944480), (5, 7955584), (7, 5682560), (8, 4972240), (10, 3977792), (13, 3059840), (14, 2841280), (16, 2486120), (20, 1988896), (26, 1529920), (28, 1420640), (32, 1243060), (35, 1136512), (40, 994448), (52, 764960), (56, 710320), (64, 621530), (65, 611968), (70, 568256), (80, 497224), (91, 437120), (104, 382480), (112, 355160), (128, 310765), (130, 305984), (140, 284128), (160, 248612), (182, 218560), (208, 191240), (224, 177580), (260, 152992), (280, 142064), (320, 124306), (364, 109280), (416, 95620), (448, 88790), (455, 87424), (520, 76496), (560, 71032), (640, 62153), (683, 58240), (728, 54640), (832, 47810), (896, 44395), (910, 43712), (1040, 38248), (1120, 35516), (1366, 29120), (1456, 27320), (1664, 23905), (1820, 21856), (2080, 19124), (2240, 17758), (2732, 14560), (2912, 13660), (3415, 11648), (3640, 10928), (4160, 9562), (4480, 8879), (4781, 8320), (5464, 7280), (5824, 6830)]