64405520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 160

約数和(自身を含む): 173560320

約数和(自身を除く): 109154800

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 29, 34, 40, 46, 58, 68, 71, 80, 85, 92, 115, 116, 136, 142, 145, 170, 184, 230, 232, 272, 284, 290, 340, 355, 368, 391, 460, 464, 493, 568, 580, 667, 680, 710, 782, 920, 986, 1136, 1160, 1207, 1334, 1360, 1420, 1564, 1633, 1840, 1955, 1972, 2059, 2320, 2414, 2465, 2668, 2840, 3128, 3266, 3335, 3910, 3944, 4118, 4828, 4930, 5336, 5680, 6035, 6256, 6532, 6670, 7820, 7888, 8165, 8236, 9656, 9860, 10295, 10672, 11339, 12070, 13064, 13340, 15640, 16330, 16472, 19312, 19720, 20590, 22678, 24140, 26128, 26680, 27761, 31280, 32660, 32944, 35003, 39440, 41180, 45356, 47357, 48280, 53360, 55522, 56695, 65320, 70006, 82360, 90712, 94714, 96560, 111044, 113390, 130640, 138805, 140012, 164720, 175015, 181424, 189428, 222088, 226780, 236785, 277610, 280024, 350030, 378856, 444176, 453560, 473570, 555220, 560048, 700060, 757712, 805069, 907120, 947140, 1110440, 1400120, 1610138, 1894280, 2220880, 2800240, 3220276, 3788560, 4025345, 6440552, 8050690, 12881104, 16101380, 32202760, 64405520]

約数ペア:

[(1, 64405520), (2, 32202760), (4, 16101380), (5, 12881104), (8, 8050690), (10, 6440552), (16, 4025345), (17, 3788560), (20, 3220276), (23, 2800240), (29, 2220880), (34, 1894280), (40, 1610138), (46, 1400120), (58, 1110440), (68, 947140), (71, 907120), (80, 805069), (85, 757712), (92, 700060), (115, 560048), (116, 555220), (136, 473570), (142, 453560), (145, 444176), (170, 378856), (184, 350030), (230, 280024), (232, 277610), (272, 236785), (284, 226780), (290, 222088), (340, 189428), (355, 181424), (368, 175015), (391, 164720), (460, 140012), (464, 138805), (493, 130640), (568, 113390), (580, 111044), (667, 96560), (680, 94714), (710, 90712), (782, 82360), (920, 70006), (986, 65320), (1136, 56695), (1160, 55522), (1207, 53360), (1334, 48280), (1360, 47357), (1420, 45356), (1564, 41180), (1633, 39440), (1840, 35003), (1955, 32944), (1972, 32660), (2059, 31280), (2320, 27761), (2414, 26680), (2465, 26128), (2668, 24140), (2840, 22678), (3128, 20590), (3266, 19720), (3335, 19312), (3910, 16472), (3944, 16330), (4118, 15640), (4828, 13340), (4930, 13064), (5336, 12070), (5680, 11339), (6035, 10672), (6256, 10295), (6532, 9860), (6670, 9656), (7820, 8236), (7888, 8165)]