177908020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{601}}^1$

素因数の和:689

約数の個数: 72

約数和(自身を含む): 404594568

約数和(自身を除く): 226686548

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 361, 380, 410, 601, 722, 779, 820, 1202, 1444, 1558, 1805, 2404, 3005, 3116, 3610, 3895, 6010, 7220, 7790, 11419, 12020, 14801, 15580, 22838, 24641, 29602, 45676, 49282, 57095, 59204, 74005, 98564, 114190, 123205, 148010, 216961, 228380, 246410, 296020, 433922, 468179, 492820, 867844, 936358, 1084805, 1872716, 2169610, 2340895, 4339220, 4681790, 8895401, 9363580, 17790802, 35581604, 44477005, 88954010, 177908020]

約数ペア:

[(1, 177908020), (2, 88954010), (4, 44477005), (5, 35581604), (10, 17790802), (19, 9363580), (20, 8895401), (38, 4681790), (41, 4339220), (76, 2340895), (82, 2169610), (95, 1872716), (164, 1084805), (190, 936358), (205, 867844), (361, 492820), (380, 468179), (410, 433922), (601, 296020), (722, 246410), (779, 228380), (820, 216961), (1202, 148010), (1444, 123205), (1558, 114190), (1805, 98564), (2404, 74005), (3005, 59204), (3116, 57095), (3610, 49282), (3895, 45676), (6010, 29602), (7220, 24641), (7790, 22838), (11419, 15580), (12020, 14801)]