156913180420

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1\times {\mathrm{631}}^1\times {\mathrm{643}}^1$

素因数の和:1661

約数の個数: 96

約数和(自身を含む): 337031928576

約数和(自身を除く): 180118748156

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 317, 610, 631, 634, 643, 1220, 1262, 1268, 1286, 1585, 2524, 2572, 3155, 3170, 3215, 6310, 6340, 6430, 12620, 12860, 19337, 38491, 38674, 39223, 76982, 77348, 78446, 96685, 153964, 156892, 192455, 193370, 196115, 200027, 203831, 384910, 386740, 392230, 400054, 405733, 407662, 769820, 784460, 800108, 811466, 815324, 1000135, 1019155, 1622932, 2000270, 2028665, 2038310, 4000540, 4057330, 4076620, 8114660, 12201647, 12433691, 24403294, 24749713, 24867382, 48806588, 49499426, 49734764, 61008235, 62168455, 98998852, 122016470, 123748565, 124336910, 128617361, 244032940, 247497130, 248673820, 257234722, 494994260, 514469444, 643086805, 1286173610, 2572347220, 7845659021, 15691318042, 31382636084, 39228295105, 78456590210, 156913180420]

約数ペア:

[(1, 156913180420), (2, 78456590210), (4, 39228295105), (5, 31382636084), (10, 15691318042), (20, 7845659021), (61, 2572347220), (122, 1286173610), (244, 643086805), (305, 514469444), (317, 494994260), (610, 257234722), (631, 248673820), (634, 247497130), (643, 244032940), (1220, 128617361), (1262, 124336910), (1268, 123748565), (1286, 122016470), (1585, 98998852), (2524, 62168455), (2572, 61008235), (3155, 49734764), (3170, 49499426), (3215, 48806588), (6310, 24867382), (6340, 24749713), (6430, 24403294), (12620, 12433691), (12860, 12201647), (19337, 8114660), (38491, 4076620), (38674, 4057330), (39223, 4000540), (76982, 2038310), (77348, 2028665), (78446, 2000270), (96685, 1622932), (153964, 1019155), (156892, 1000135), (192455, 815324), (193370, 811466), (196115, 800108), (200027, 784460), (203831, 769820), (384910, 407662), (386740, 405733), (392230, 400054)]