28641440

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:262

約数の個数: 96

約数和(自身を含む): 72648576

約数和(自身を除く): 44007136

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 43, 46, 80, 86, 92, 115, 160, 172, 181, 184, 215, 230, 344, 362, 368, 430, 460, 688, 724, 736, 860, 905, 920, 989, 1376, 1448, 1720, 1810, 1840, 1978, 2896, 3440, 3620, 3680, 3956, 4163, 4945, 5792, 6880, 7240, 7783, 7912, 8326, 9890, 14480, 15566, 15824, 16652, 19780, 20815, 28960, 31132, 31648, 33304, 38915, 39560, 41630, 62264, 66608, 77830, 79120, 83260, 124528, 133216, 155660, 158240, 166520, 179009, 249056, 311320, 333040, 358018, 622640, 666080, 716036, 895045, 1245280, 1432072, 1790090, 2864144, 3580180, 5728288, 7160360, 14320720, 28641440]

約数ペア:

[(1, 28641440), (2, 14320720), (4, 7160360), (5, 5728288), (8, 3580180), (10, 2864144), (16, 1790090), (20, 1432072), (23, 1245280), (32, 895045), (40, 716036), (43, 666080), (46, 622640), (80, 358018), (86, 333040), (92, 311320), (115, 249056), (160, 179009), (172, 166520), (181, 158240), (184, 155660), (215, 133216), (230, 124528), (344, 83260), (362, 79120), (368, 77830), (430, 66608), (460, 62264), (688, 41630), (724, 39560), (736, 38915), (860, 33304), (905, 31648), (920, 31132), (989, 28960), (1376, 20815), (1448, 19780), (1720, 16652), (1810, 15824), (1840, 15566), (1978, 14480), (2896, 9890), (3440, 8326), (3620, 7912), (3680, 7783), (3956, 7240), (4163, 6880), (4945, 5792)]