15691454720

素因数分解:

$2^8\times 5^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1\times {\mathrm{761}}^1$

素因数の和:1052

約数の個数: 144

約数和(自身を含む): 38268462960

約数和(自身を除く): 22577008240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 128, 160, 178, 181, 256, 320, 356, 362, 445, 640, 712, 724, 761, 890, 905, 1280, 1424, 1448, 1522, 1780, 1810, 2848, 2896, 3044, 3560, 3620, 3805, 5696, 5792, 6088, 7120, 7240, 7610, 11392, 11584, 12176, 14240, 14480, 15220, 16109, 22784, 23168, 24352, 28480, 28960, 30440, 32218, 46336, 48704, 56960, 57920, 60880, 64436, 67729, 80545, 97408, 113920, 115840, 121760, 128872, 135458, 137741, 161090, 194816, 231680, 243520, 257744, 270916, 275482, 322180, 338645, 487040, 515488, 541832, 550964, 644360, 677290, 688705, 974080, 1030976, 1083664, 1101928, 1288720, 1354580, 1377410, 2061952, 2167328, 2203856, 2577440, 2709160, 2754820, 4123904, 4334656, 4407712, 5154880, 5418320, 5509640, 8669312, 8815424, 10309760, 10836640, 11019280, 12258949, 17338624, 17630848, 20619520, 21673280, 22038560, 24517898, 35261696, 43346560, 44077120, 49035796, 61294745, 86693120, 88154240, 98071592, 122589490, 176308480, 196143184, 245178980, 392286368, 490357960, 784572736, 980715920, 1569145472, 1961431840, 3138290944, 3922863680, 7845727360, 15691454720]

約数ペア:

[(1, 15691454720), (2, 7845727360), (4, 3922863680), (5, 3138290944), (8, 1961431840), (10, 1569145472), (16, 980715920), (20, 784572736), (32, 490357960), (40, 392286368), (64, 245178980), (80, 196143184), (89, 176308480), (128, 122589490), (160, 98071592), (178, 88154240), (181, 86693120), (256, 61294745), (320, 49035796), (356, 44077120), (362, 43346560), (445, 35261696), (640, 24517898), (712, 22038560), (724, 21673280), (761, 20619520), (890, 17630848), (905, 17338624), (1280, 12258949), (1424, 11019280), (1448, 10836640), (1522, 10309760), (1780, 8815424), (1810, 8669312), (2848, 5509640), (2896, 5418320), (3044, 5154880), (3560, 4407712), (3620, 4334656), (3805, 4123904), (5696, 2754820), (5792, 2709160), (6088, 2577440), (7120, 2203856), (7240, 2167328), (7610, 2061952), (11392, 1377410), (11584, 1354580), (12176, 1288720), (14240, 1101928), (14480, 1083664), (15220, 1030976), (16109, 974080), (22784, 688705), (23168, 677290), (24352, 644360), (28480, 550964), (28960, 541832), (30440, 515488), (32218, 487040), (46336, 338645), (48704, 322180), (56960, 275482), (57920, 270916), (60880, 257744), (64436, 243520), (67729, 231680), (80545, 194816), (97408, 161090), (113920, 137741), (115840, 135458), (121760, 128872)]