18850980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 96

約数和(自身を含む): 55319040

約数和(自身を除く): 36468060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 79, 82, 97, 123, 158, 164, 194, 205, 237, 246, 291, 316, 388, 395, 410, 474, 485, 492, 582, 615, 790, 820, 948, 970, 1164, 1185, 1230, 1455, 1580, 1940, 2370, 2460, 2910, 3239, 3977, 4740, 5820, 6478, 7663, 7954, 9717, 11931, 12956, 15326, 15908, 16195, 19434, 19885, 22989, 23862, 30652, 32390, 38315, 38868, 39770, 45978, 47724, 48585, 59655, 64780, 76630, 79540, 91956, 97170, 114945, 119310, 153260, 194340, 229890, 238620, 314183, 459780, 628366, 942549, 1256732, 1570915, 1885098, 3141830, 3770196, 4712745, 6283660, 9425490, 18850980]

約数ペア:

[(1, 18850980), (2, 9425490), (3, 6283660), (4, 4712745), (5, 3770196), (6, 3141830), (10, 1885098), (12, 1570915), (15, 1256732), (20, 942549), (30, 628366), (41, 459780), (60, 314183), (79, 238620), (82, 229890), (97, 194340), (123, 153260), (158, 119310), (164, 114945), (194, 97170), (205, 91956), (237, 79540), (246, 76630), (291, 64780), (316, 59655), (388, 48585), (395, 47724), (410, 45978), (474, 39770), (485, 38868), (492, 38315), (582, 32390), (615, 30652), (790, 23862), (820, 22989), (948, 19885), (970, 19434), (1164, 16195), (1185, 15908), (1230, 15326), (1455, 12956), (1580, 11931), (1940, 9717), (2370, 7954), (2460, 7663), (2910, 6478), (3239, 5820), (3977, 4740)]