20178562842

素因数分解:

$2^1\times 3^2\times {\mathrm{31}}^1\times {\mathrm{233}}^1\times {\mathrm{155203}}^1$

素因数の和:155475

約数の個数: 48

約数和(自身を含む): 45324534528

約数和(自身を除く): 25145971686

約数列:

[1, 2, 3, 6, 9, 18, 31, 62, 93, 186, 233, 279, 466, 558, 699, 1398, 2097, 4194, 7223, 14446, 21669, 43338, 65007, 130014, 155203, 310406, 465609, 931218, 1396827, 2793654, 4811293, 9622586, 14433879, 28867758, 36162299, 43301637, 72324598, 86603274, 108486897, 216973794, 325460691, 650921382, 1121031269, 2242062538, 3363093807, 6726187614, 10089281421, 20178562842]

約数ペア:

[(1, 20178562842), (2, 10089281421), (3, 6726187614), (6, 3363093807), (9, 2242062538), (18, 1121031269), (31, 650921382), (62, 325460691), (93, 216973794), (186, 108486897), (233, 86603274), (279, 72324598), (466, 43301637), (558, 36162299), (699, 28867758), (1398, 14433879), (2097, 9622586), (4194, 4811293), (7223, 2793654), (14446, 1396827), (21669, 931218), (43338, 465609), (65007, 310406), (130014, 155203)]