19653590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 40979520

約数和(自身を除く): 21325930

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 61, 101, 110, 122, 145, 202, 290, 305, 319, 505, 610, 638, 671, 1010, 1111, 1342, 1595, 1769, 2222, 2929, 3190, 3355, 3538, 5555, 5858, 6161, 6710, 8845, 11110, 12322, 14645, 17690, 19459, 29290, 30805, 32219, 38918, 61610, 64438, 67771, 97295, 135542, 161095, 178669, 194590, 322190, 338855, 357338, 677710, 893345, 1786690, 1965359, 3930718, 9826795, 19653590]

約数ペア:

[(1, 19653590), (2, 9826795), (5, 3930718), (10, 1965359), (11, 1786690), (22, 893345), (29, 677710), (55, 357338), (58, 338855), (61, 322190), (101, 194590), (110, 178669), (122, 161095), (145, 135542), (202, 97295), (290, 67771), (305, 64438), (319, 61610), (505, 38918), (610, 32219), (638, 30805), (671, 29290), (1010, 19459), (1111, 17690), (1342, 14645), (1595, 12322), (1769, 11110), (2222, 8845), (2929, 6710), (3190, 6161), (3355, 5858), (3538, 5555)]