40789120

素因数分解:

$2^7\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 128

約数和(自身を含む): 108397440

約数和(自身を除く): 67608320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 32, 34, 40, 46, 64, 68, 80, 85, 92, 115, 128, 136, 160, 163, 170, 184, 230, 272, 320, 326, 340, 368, 391, 460, 544, 640, 652, 680, 736, 782, 815, 920, 1088, 1304, 1360, 1472, 1564, 1630, 1840, 1955, 2176, 2608, 2720, 2771, 2944, 3128, 3260, 3680, 3749, 3910, 5216, 5440, 5542, 6256, 6520, 7360, 7498, 7820, 10432, 10880, 11084, 12512, 13040, 13855, 14720, 14996, 15640, 18745, 20864, 22168, 25024, 26080, 27710, 29992, 31280, 37490, 44336, 50048, 52160, 55420, 59984, 62560, 63733, 74980, 88672, 104320, 110840, 119968, 125120, 127466, 149960, 177344, 221680, 239936, 250240, 254932, 299920, 318665, 354688, 443360, 479872, 509864, 599840, 637330, 886720, 1019728, 1199680, 1274660, 1773440, 2039456, 2399360, 2549320, 4078912, 5098640, 8157824, 10197280, 20394560, 40789120]

約数ペア:

[(1, 40789120), (2, 20394560), (4, 10197280), (5, 8157824), (8, 5098640), (10, 4078912), (16, 2549320), (17, 2399360), (20, 2039456), (23, 1773440), (32, 1274660), (34, 1199680), (40, 1019728), (46, 886720), (64, 637330), (68, 599840), (80, 509864), (85, 479872), (92, 443360), (115, 354688), (128, 318665), (136, 299920), (160, 254932), (163, 250240), (170, 239936), (184, 221680), (230, 177344), (272, 149960), (320, 127466), (326, 125120), (340, 119968), (368, 110840), (391, 104320), (460, 88672), (544, 74980), (640, 63733), (652, 62560), (680, 59984), (736, 55420), (782, 52160), (815, 50048), (920, 44336), (1088, 37490), (1304, 31280), (1360, 29992), (1472, 27710), (1564, 26080), (1630, 25024), (1840, 22168), (1955, 20864), (2176, 18745), (2608, 15640), (2720, 14996), (2771, 14720), (2944, 13855), (3128, 13040), (3260, 12512), (3680, 11084), (3749, 10880), (3910, 10432), (5216, 7820), (5440, 7498), (5542, 7360), (6256, 6520)]