19376720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{227}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 49871808

約数和(自身を除く): 30495088

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 97, 110, 176, 194, 220, 227, 388, 440, 454, 485, 776, 880, 908, 970, 1067, 1135, 1552, 1816, 1940, 2134, 2270, 2497, 3632, 3880, 4268, 4540, 4994, 5335, 7760, 8536, 9080, 9988, 10670, 12485, 17072, 18160, 19976, 21340, 22019, 24970, 39952, 42680, 44038, 49940, 85360, 88076, 99880, 110095, 176152, 199760, 220190, 242209, 352304, 440380, 484418, 880760, 968836, 1211045, 1761520, 1937672, 2422090, 3875344, 4844180, 9688360, 19376720]

約数ペア:

[(1, 19376720), (2, 9688360), (4, 4844180), (5, 3875344), (8, 2422090), (10, 1937672), (11, 1761520), (16, 1211045), (20, 968836), (22, 880760), (40, 484418), (44, 440380), (55, 352304), (80, 242209), (88, 220190), (97, 199760), (110, 176152), (176, 110095), (194, 99880), (220, 88076), (227, 85360), (388, 49940), (440, 44038), (454, 42680), (485, 39952), (776, 24970), (880, 22019), (908, 21340), (970, 19976), (1067, 18160), (1135, 17072), (1552, 12485), (1816, 10670), (1940, 9988), (2134, 9080), (2270, 8536), (2497, 7760), (3632, 5335), (3880, 4994), (4268, 4540)]