19796480

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:90

約数の個数: 160

約数和(自身を含む): 55978560

約数和(自身を除く): 36182080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 37, 38, 40, 44, 55, 64, 74, 76, 80, 88, 95, 110, 128, 148, 152, 160, 176, 185, 190, 209, 220, 256, 296, 304, 320, 352, 370, 380, 407, 418, 440, 512, 592, 608, 640, 703, 704, 740, 760, 814, 836, 880, 1045, 1184, 1216, 1280, 1406, 1408, 1480, 1520, 1628, 1672, 1760, 2035, 2090, 2368, 2432, 2560, 2812, 2816, 2960, 3040, 3256, 3344, 3515, 3520, 4070, 4180, 4736, 4864, 5624, 5632, 5920, 6080, 6512, 6688, 7030, 7040, 7733, 8140, 8360, 9472, 9728, 11248, 11840, 12160, 13024, 13376, 14060, 14080, 15466, 16280, 16720, 18944, 22496, 23680, 24320, 26048, 26752, 28120, 28160, 30932, 32560, 33440, 38665, 44992, 47360, 48640, 52096, 53504, 56240, 61864, 65120, 66880, 77330, 89984, 94720, 104192, 107008, 112480, 123728, 130240, 133760, 154660, 179968, 208384, 224960, 247456, 260480, 267520, 309320, 359936, 449920, 494912, 520960, 535040, 618640, 899840, 989824, 1041920, 1237280, 1799680, 1979648, 2474560, 3959296, 4949120, 9898240, 19796480]

約数ペア:

[(1, 19796480), (2, 9898240), (4, 4949120), (5, 3959296), (8, 2474560), (10, 1979648), (11, 1799680), (16, 1237280), (19, 1041920), (20, 989824), (22, 899840), (32, 618640), (37, 535040), (38, 520960), (40, 494912), (44, 449920), (55, 359936), (64, 309320), (74, 267520), (76, 260480), (80, 247456), (88, 224960), (95, 208384), (110, 179968), (128, 154660), (148, 133760), (152, 130240), (160, 123728), (176, 112480), (185, 107008), (190, 104192), (209, 94720), (220, 89984), (256, 77330), (296, 66880), (304, 65120), (320, 61864), (352, 56240), (370, 53504), (380, 52096), (407, 48640), (418, 47360), (440, 44992), (512, 38665), (592, 33440), (608, 32560), (640, 30932), (703, 28160), (704, 28120), (740, 26752), (760, 26048), (814, 24320), (836, 23680), (880, 22496), (1045, 18944), (1184, 16720), (1216, 16280), (1280, 15466), (1406, 14080), (1408, 14060), (1480, 13376), (1520, 13024), (1628, 12160), (1672, 11840), (1760, 11248), (2035, 9728), (2090, 9472), (2368, 8360), (2432, 8140), (2560, 7733), (2812, 7040), (2816, 7030), (2960, 6688), (3040, 6512), (3256, 6080), (3344, 5920), (3515, 5632), (3520, 5624), (4070, 4864), (4180, 4736)]