20291910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:329

約数の個数: 64

約数和(自身を含む): 50791104

約数和(自身を除く): 30499194

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 37, 74, 101, 111, 181, 185, 202, 222, 303, 362, 370, 505, 543, 555, 606, 905, 1010, 1086, 1110, 1515, 1810, 2715, 3030, 3737, 5430, 6697, 7474, 11211, 13394, 18281, 18685, 20091, 22422, 33485, 36562, 37370, 40182, 54843, 56055, 66970, 91405, 100455, 109686, 112110, 182810, 200910, 274215, 548430, 676397, 1352794, 2029191, 3381985, 4058382, 6763970, 10145955, 20291910]

約数ペア:

[(1, 20291910), (2, 10145955), (3, 6763970), (5, 4058382), (6, 3381985), (10, 2029191), (15, 1352794), (30, 676397), (37, 548430), (74, 274215), (101, 200910), (111, 182810), (181, 112110), (185, 109686), (202, 100455), (222, 91405), (303, 66970), (362, 56055), (370, 54843), (505, 40182), (543, 37370), (555, 36562), (606, 33485), (905, 22422), (1010, 20091), (1086, 18685), (1110, 18281), (1515, 13394), (1810, 11211), (2715, 7474), (3030, 6697), (3737, 5430)]