55430440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:171

約数の個数: 128

約数和(自身を含む): 143256960

約数和(自身を除く): 87826520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 37, 40, 43, 52, 65, 67, 74, 86, 104, 130, 134, 148, 172, 185, 215, 260, 268, 296, 335, 344, 370, 430, 481, 520, 536, 559, 670, 740, 860, 871, 962, 1118, 1340, 1480, 1591, 1720, 1742, 1924, 2236, 2405, 2479, 2680, 2795, 2881, 3182, 3484, 3848, 4355, 4472, 4810, 4958, 5590, 5762, 6364, 6968, 7955, 8710, 9620, 9916, 11180, 11524, 12395, 12728, 14405, 15910, 17420, 19240, 19832, 20683, 22360, 23048, 24790, 28810, 31820, 32227, 34840, 37453, 41366, 49580, 57620, 63640, 64454, 74906, 82732, 99160, 103415, 106597, 115240, 128908, 149812, 161135, 165464, 187265, 206830, 213194, 257816, 299624, 322270, 374530, 413660, 426388, 532985, 644540, 749060, 827320, 852776, 1065970, 1289080, 1385761, 1498120, 2131940, 2771522, 4263880, 5543044, 6928805, 11086088, 13857610, 27715220, 55430440]

約数ペア:

[(1, 55430440), (2, 27715220), (4, 13857610), (5, 11086088), (8, 6928805), (10, 5543044), (13, 4263880), (20, 2771522), (26, 2131940), (37, 1498120), (40, 1385761), (43, 1289080), (52, 1065970), (65, 852776), (67, 827320), (74, 749060), (86, 644540), (104, 532985), (130, 426388), (134, 413660), (148, 374530), (172, 322270), (185, 299624), (215, 257816), (260, 213194), (268, 206830), (296, 187265), (335, 165464), (344, 161135), (370, 149812), (430, 128908), (481, 115240), (520, 106597), (536, 103415), (559, 99160), (670, 82732), (740, 74906), (860, 64454), (871, 63640), (962, 57620), (1118, 49580), (1340, 41366), (1480, 37453), (1591, 34840), (1720, 32227), (1742, 31820), (1924, 28810), (2236, 24790), (2405, 23048), (2479, 22360), (2680, 20683), (2795, 19832), (2881, 19240), (3182, 17420), (3484, 15910), (3848, 14405), (4355, 12728), (4472, 12395), (4810, 11524), (4958, 11180), (5590, 9916), (5762, 9620), (6364, 8710), (6968, 7955)]