20030178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:271

約数の個数: 64

約数和(自身を含む): 47738880

約数和(自身を除く): 27708702

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 73, 94, 139, 141, 146, 219, 278, 282, 329, 417, 438, 511, 658, 834, 973, 987, 1022, 1533, 1946, 1974, 2919, 3066, 3431, 5838, 6533, 6862, 10147, 10293, 13066, 19599, 20294, 20586, 24017, 30441, 39198, 45731, 48034, 60882, 71029, 72051, 91462, 137193, 142058, 144102, 213087, 274386, 426174, 476909, 953818, 1430727, 2861454, 3338363, 6676726, 10015089, 20030178]

約数ペア:

[(1, 20030178), (2, 10015089), (3, 6676726), (6, 3338363), (7, 2861454), (14, 1430727), (21, 953818), (42, 476909), (47, 426174), (73, 274386), (94, 213087), (139, 144102), (141, 142058), (146, 137193), (219, 91462), (278, 72051), (282, 71029), (329, 60882), (417, 48034), (438, 45731), (511, 39198), (658, 30441), (834, 24017), (973, 20586), (987, 20294), (1022, 19599), (1533, 13066), (1946, 10293), (1974, 10147), (2919, 6862), (3066, 6533), (3431, 5838)]