28007460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{11969}}^1$

素因数の和:11997

約数の個数: 72

約数和(自身を含む): 91498680

約数和(自身を除く): 63491220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 11969, 23938, 35907, 47876, 59845, 71814, 107721, 119690, 143628, 155597, 179535, 215442, 239380, 311194, 359070, 430884, 466791, 538605, 622388, 718140, 777985, 933582, 1077210, 1400373, 1555970, 1867164, 2154420, 2333955, 2800746, 3111940, 4667910, 5601492, 7001865, 9335820, 14003730, 28007460]

約数ペア:

[(1, 28007460), (2, 14003730), (3, 9335820), (4, 7001865), (5, 5601492), (6, 4667910), (9, 3111940), (10, 2800746), (12, 2333955), (13, 2154420), (15, 1867164), (18, 1555970), (20, 1400373), (26, 1077210), (30, 933582), (36, 777985), (39, 718140), (45, 622388), (52, 538605), (60, 466791), (65, 430884), (78, 359070), (90, 311194), (117, 239380), (130, 215442), (156, 179535), (180, 155597), (195, 143628), (234, 119690), (260, 107721), (390, 71814), (468, 59845), (585, 47876), (780, 35907), (1170, 23938), (2340, 11969)]