20219940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8641}}^1$

素因数の和:8669

約数の個数: 72

約数和(自身を含む): 66059448

約数和(自身を除く): 45839508

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, 8641, 17282, 25923, 34564, 43205, 51846, 77769, 86410, 103692, 112333, 129615, 155538, 172820, 224666, 259230, 311076, 336999, 388845, 449332, 518460, 561665, 673998, 777690, 1010997, 1123330, 1347996, 1555380, 1684995, 2021994, 2246660, 3369990, 4043988, 5054985, 6739980, 10109970, 20219940]

約数ペア:

[(1, 20219940), (2, 10109970), (3, 6739980), (4, 5054985), (5, 4043988), (6, 3369990), (9, 2246660), (10, 2021994), (12, 1684995), (13, 1555380), (15, 1347996), (18, 1123330), (20, 1010997), (26, 777690), (30, 673998), (36, 561665), (39, 518460), (45, 449332), (52, 388845), (60, 336999), (65, 311076), (78, 259230), (90, 224666), (117, 172820), (130, 155538), (156, 129615), (180, 112333), (195, 103692), (234, 86410), (260, 77769), (390, 51846), (468, 43205), (585, 34564), (780, 25923), (1170, 17282), (2340, 8641)]