19559540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{977}}^1$

素因数の和:1017

約数の個数: 96

約数和(自身を含む): 55206144

約数和(自身を除く): 35646604

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 52, 55, 65, 70, 77, 91, 110, 130, 140, 143, 154, 182, 220, 260, 286, 308, 364, 385, 455, 572, 715, 770, 910, 977, 1001, 1430, 1540, 1820, 1954, 2002, 2860, 3908, 4004, 4885, 5005, 6839, 9770, 10010, 10747, 12701, 13678, 19540, 20020, 21494, 25402, 27356, 34195, 42988, 50804, 53735, 63505, 68390, 75229, 88907, 107470, 127010, 136780, 139711, 150458, 177814, 214940, 254020, 279422, 300916, 355628, 376145, 444535, 558844, 698555, 752290, 889070, 977977, 1397110, 1504580, 1778140, 1955954, 2794220, 3911908, 4889885, 9779770, 19559540]

約数ペア:

[(1, 19559540), (2, 9779770), (4, 4889885), (5, 3911908), (7, 2794220), (10, 1955954), (11, 1778140), (13, 1504580), (14, 1397110), (20, 977977), (22, 889070), (26, 752290), (28, 698555), (35, 558844), (44, 444535), (52, 376145), (55, 355628), (65, 300916), (70, 279422), (77, 254020), (91, 214940), (110, 177814), (130, 150458), (140, 139711), (143, 136780), (154, 127010), (182, 107470), (220, 88907), (260, 75229), (286, 68390), (308, 63505), (364, 53735), (385, 50804), (455, 42988), (572, 34195), (715, 27356), (770, 25402), (910, 21494), (977, 20020), (1001, 19540), (1430, 13678), (1540, 12701), (1820, 10747), (1954, 10010), (2002, 9770), (2860, 6839), (3908, 5005), (4004, 4885)]