19278688

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1$

素因数の和:428

約数の個数: 72

約数和(自身を含む): 45045504

約数和(自身を除く): 25766816

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 121, 143, 176, 208, 242, 286, 352, 383, 416, 484, 572, 766, 968, 1144, 1532, 1573, 1936, 2288, 3064, 3146, 3872, 4213, 4576, 4979, 6128, 6292, 8426, 9958, 12256, 12584, 16852, 19916, 25168, 33704, 39832, 46343, 50336, 54769, 67408, 79664, 92686, 109538, 134816, 159328, 185372, 219076, 370744, 438152, 602459, 741488, 876304, 1204918, 1482976, 1752608, 2409836, 4819672, 9639344, 19278688]

約数ペア:

[(1, 19278688), (2, 9639344), (4, 4819672), (8, 2409836), (11, 1752608), (13, 1482976), (16, 1204918), (22, 876304), (26, 741488), (32, 602459), (44, 438152), (52, 370744), (88, 219076), (104, 185372), (121, 159328), (143, 134816), (176, 109538), (208, 92686), (242, 79664), (286, 67408), (352, 54769), (383, 50336), (416, 46343), (484, 39832), (572, 33704), (766, 25168), (968, 19916), (1144, 16852), (1532, 12584), (1573, 12256), (1936, 9958), (2288, 8426), (3064, 6292), (3146, 6128), (3872, 4979), (4213, 4576)]