201819940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{233}}^1\times {\mathrm{269}}^1$

素因数の和:541

約数の個数: 96

約数和(自身を含む): 509483520

約数和(自身を除く): 307663580

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 233, 269, 322, 460, 466, 538, 644, 805, 932, 1076, 1165, 1345, 1610, 1631, 1883, 2330, 2690, 3220, 3262, 3766, 4660, 5359, 5380, 6187, 6524, 7532, 8155, 9415, 10718, 12374, 16310, 18830, 21436, 24748, 26795, 30935, 32620, 37513, 37660, 43309, 53590, 61870, 62677, 75026, 86618, 107180, 123740, 125354, 150052, 173236, 187565, 216545, 250708, 313385, 375130, 433090, 438739, 626770, 750260, 866180, 877478, 1253540, 1441571, 1754956, 2193695, 2883142, 4387390, 5766284, 7207855, 8774780, 10090997, 14415710, 20181994, 28831420, 40363988, 50454985, 100909970, 201819940]

約数ペア:

[(1, 201819940), (2, 100909970), (4, 50454985), (5, 40363988), (7, 28831420), (10, 20181994), (14, 14415710), (20, 10090997), (23, 8774780), (28, 7207855), (35, 5766284), (46, 4387390), (70, 2883142), (92, 2193695), (115, 1754956), (140, 1441571), (161, 1253540), (230, 877478), (233, 866180), (269, 750260), (322, 626770), (460, 438739), (466, 433090), (538, 375130), (644, 313385), (805, 250708), (932, 216545), (1076, 187565), (1165, 173236), (1345, 150052), (1610, 125354), (1631, 123740), (1883, 107180), (2330, 86618), (2690, 75026), (3220, 62677), (3262, 61870), (3766, 53590), (4660, 43309), (5359, 37660), (5380, 37513), (6187, 32620), (6524, 30935), (7532, 26795), (8155, 24748), (9415, 21436), (10718, 18830), (12374, 16310)]