163786420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{4517}}^1$

素因数の和:4577

約数の個数: 72

約数和(自身を含む): 411011496

約数和(自身を除く): 247225076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 370, 490, 518, 740, 980, 1036, 1295, 1813, 2590, 3626, 4517, 5180, 7252, 9034, 9065, 18068, 18130, 22585, 31619, 36260, 45170, 63238, 90340, 126476, 158095, 167129, 221333, 316190, 334258, 442666, 632380, 668516, 835645, 885332, 1106665, 1169903, 1671290, 2213330, 2339806, 3342580, 4426660, 4679612, 5849515, 8189321, 11699030, 16378642, 23398060, 32757284, 40946605, 81893210, 163786420]

約数ペア:

[(1, 163786420), (2, 81893210), (4, 40946605), (5, 32757284), (7, 23398060), (10, 16378642), (14, 11699030), (20, 8189321), (28, 5849515), (35, 4679612), (37, 4426660), (49, 3342580), (70, 2339806), (74, 2213330), (98, 1671290), (140, 1169903), (148, 1106665), (185, 885332), (196, 835645), (245, 668516), (259, 632380), (370, 442666), (490, 334258), (518, 316190), (740, 221333), (980, 167129), (1036, 158095), (1295, 126476), (1813, 90340), (2590, 63238), (3626, 45170), (4517, 36260), (5180, 31619), (7252, 22585), (9034, 18130), (9065, 18068)]