20185677910

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1\times {\mathrm{4261}}^1$

素因数の和:4813

約数の個数: 64

約数和(自身を含む): 38885806080

約数和(自身を除く): 18700128170

約数列:

[1, 2, 5, 10, 23, 43, 46, 86, 115, 215, 230, 430, 479, 958, 989, 1978, 2395, 4261, 4790, 4945, 8522, 9890, 11017, 20597, 21305, 22034, 41194, 42610, 55085, 98003, 102985, 110170, 183223, 196006, 205970, 366446, 473731, 490015, 916115, 947462, 980030, 1832230, 2041019, 2368655, 4082038, 4214129, 4737310, 8428258, 10205095, 20410190, 21070645, 42141290, 46943437, 87763817, 93886874, 175527634, 234717185, 438819085, 469434370, 877638170, 2018567791, 4037135582, 10092838955, 20185677910]

約数ペア:

[(1, 20185677910), (2, 10092838955), (5, 4037135582), (10, 2018567791), (23, 877638170), (43, 469434370), (46, 438819085), (86, 234717185), (115, 175527634), (215, 93886874), (230, 87763817), (430, 46943437), (479, 42141290), (958, 21070645), (989, 20410190), (1978, 10205095), (2395, 8428258), (4261, 4737310), (4790, 4214129), (4945, 4082038), (8522, 2368655), (9890, 2041019), (11017, 1832230), (20597, 980030), (21305, 947462), (22034, 916115), (41194, 490015), (42610, 473731), (55085, 366446), (98003, 205970), (102985, 196006), (110170, 183223)]