20121894620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{653}}^1\times {\mathrm{90631}}^1$

素因数の和:91310

約数の個数: 48

約数和(自身を含む): 44810635968

約数和(自身を除く): 24688741348

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 653, 1306, 2612, 3265, 6530, 11101, 13060, 22202, 44404, 55505, 90631, 111010, 181262, 222020, 362524, 453155, 906310, 1540727, 1812620, 3081454, 6162908, 7703635, 15407270, 30814540, 59182043, 118364086, 236728172, 295910215, 591820430, 1006094731, 1183640860, 2012189462, 4024378924, 5030473655, 10060947310, 20121894620]

約数ペア:

[(1, 20121894620), (2, 10060947310), (4, 5030473655), (5, 4024378924), (10, 2012189462), (17, 1183640860), (20, 1006094731), (34, 591820430), (68, 295910215), (85, 236728172), (170, 118364086), (340, 59182043), (653, 30814540), (1306, 15407270), (2612, 7703635), (3265, 6162908), (6530, 3081454), (11101, 1812620), (13060, 1540727), (22202, 906310), (44404, 453155), (55505, 362524), (90631, 222020), (111010, 181262)]