2220479205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{1999}}^1$

素因数の和:2234

約数の個数: 64

約数和(自身を含む): 4147200000

約数和(自身を除く): 1926720795

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 149, 213, 355, 447, 497, 745, 1043, 1065, 1491, 1999, 2235, 2485, 3129, 5215, 5997, 7455, 9995, 10579, 13993, 15645, 29985, 31737, 41979, 52895, 69965, 74053, 141929, 158685, 209895, 222159, 297851, 370265, 425787, 709645, 893553, 993503, 1110795, 1489255, 2084957, 2128935, 2980509, 4467765, 4967515, 6254871, 10424785, 14902545, 21147421, 31274355, 63442263, 105737105, 148031947, 317211315, 444095841, 740159735, 2220479205]

約数ペア:

[(1, 2220479205), (3, 740159735), (5, 444095841), (7, 317211315), (15, 148031947), (21, 105737105), (35, 63442263), (71, 31274355), (105, 21147421), (149, 14902545), (213, 10424785), (355, 6254871), (447, 4967515), (497, 4467765), (745, 2980509), (1043, 2128935), (1065, 2084957), (1491, 1489255), (1999, 1110795), (2235, 993503), (2485, 893553), (3129, 709645), (5215, 425787), (5997, 370265), (7455, 297851), (9995, 222159), (10579, 209895), (13993, 158685), (15645, 141929), (29985, 74053), (31737, 69965), (41979, 52895)]