1831001620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:474

約数の個数: 144

約数和(自身を含む): 4604236560

約数和(自身を除く): 2773234940

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 109, 122, 140, 196, 218, 244, 245, 281, 305, 427, 436, 490, 545, 562, 610, 763, 854, 980, 1090, 1124, 1220, 1405, 1526, 1708, 1967, 2135, 2180, 2810, 2989, 3052, 3815, 3934, 4270, 5341, 5620, 5978, 6649, 7630, 7868, 8540, 9835, 10682, 11956, 13298, 13769, 14945, 15260, 17141, 19670, 21364, 26596, 26705, 27538, 29890, 30629, 33245, 34282, 39340, 46543, 53410, 55076, 59780, 61258, 66490, 68564, 68845, 85705, 93086, 106820, 119987, 122516, 132980, 137690, 153145, 171410, 186172, 214403, 232715, 239974, 275380, 306290, 325801, 342820, 428806, 465430, 479948, 599935, 612580, 651602, 839909, 857612, 930860, 1072015, 1199870, 1303204, 1500821, 1629005, 1679818, 1868369, 2144030, 2399740, 3001642, 3258010, 3359636, 3736738, 4199545, 4288060, 6003284, 6516020, 7473476, 7504105, 8399090, 9341845, 13078583, 15008210, 16798180, 18683690, 26157166, 30016420, 37367380, 52314332, 65392915, 91550081, 130785830, 183100162, 261571660, 366200324, 457750405, 915500810, 1831001620]

約数ペア:

[(1, 1831001620), (2, 915500810), (4, 457750405), (5, 366200324), (7, 261571660), (10, 183100162), (14, 130785830), (20, 91550081), (28, 65392915), (35, 52314332), (49, 37367380), (61, 30016420), (70, 26157166), (98, 18683690), (109, 16798180), (122, 15008210), (140, 13078583), (196, 9341845), (218, 8399090), (244, 7504105), (245, 7473476), (281, 6516020), (305, 6003284), (427, 4288060), (436, 4199545), (490, 3736738), (545, 3359636), (562, 3258010), (610, 3001642), (763, 2399740), (854, 2144030), (980, 1868369), (1090, 1679818), (1124, 1629005), (1220, 1500821), (1405, 1303204), (1526, 1199870), (1708, 1072015), (1967, 930860), (2135, 857612), (2180, 839909), (2810, 651602), (2989, 612580), (3052, 599935), (3815, 479948), (3934, 465430), (4270, 428806), (5341, 342820), (5620, 325801), (5978, 306290), (6649, 275380), (7630, 239974), (7868, 232715), (8540, 214403), (9835, 186172), (10682, 171410), (11956, 153145), (13298, 137690), (13769, 132980), (14945, 122516), (15260, 119987), (17141, 106820), (19670, 93086), (21364, 85705), (26596, 68845), (26705, 68564), (27538, 66490), (29890, 61258), (30629, 59780), (33245, 55076), (34282, 53410), (39340, 46543)]