19007890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{683}}^1$

素因数の和:735

約数の個数: 48

約数和(自身を含む): 39299904

約数和(自身を除く): 20292014

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 121, 230, 242, 253, 506, 605, 683, 1210, 1265, 1366, 2530, 2783, 3415, 5566, 6830, 7513, 13915, 15026, 15709, 27830, 31418, 37565, 75130, 78545, 82643, 157090, 165286, 172799, 345598, 413215, 826430, 863995, 1727990, 1900789, 3801578, 9503945, 19007890]

約数ペア:

[(1, 19007890), (2, 9503945), (5, 3801578), (10, 1900789), (11, 1727990), (22, 863995), (23, 826430), (46, 413215), (55, 345598), (110, 172799), (115, 165286), (121, 157090), (230, 82643), (242, 78545), (253, 75130), (506, 37565), (605, 31418), (683, 27830), (1210, 15709), (1265, 15026), (1366, 13915), (2530, 7513), (2783, 6830), (3415, 5566)]