18951390

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 51891840

約数和(自身を除く): 32940450

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 59, 83, 86, 90, 118, 129, 166, 177, 215, 249, 258, 295, 354, 387, 415, 430, 498, 531, 590, 645, 747, 774, 830, 885, 1062, 1245, 1290, 1494, 1770, 1935, 2490, 2537, 2655, 3569, 3735, 3870, 4897, 5074, 5310, 7138, 7470, 7611, 9794, 10707, 12685, 14691, 15222, 17845, 21414, 22833, 24485, 25370, 29382, 32121, 35690, 38055, 44073, 45666, 48970, 53535, 64242, 73455, 76110, 88146, 107070, 114165, 146910, 160605, 210571, 220365, 228330, 321210, 421142, 440730, 631713, 1052855, 1263426, 1895139, 2105710, 3158565, 3790278, 6317130, 9475695, 18951390]

約数ペア:

[(1, 18951390), (2, 9475695), (3, 6317130), (5, 3790278), (6, 3158565), (9, 2105710), (10, 1895139), (15, 1263426), (18, 1052855), (30, 631713), (43, 440730), (45, 421142), (59, 321210), (83, 228330), (86, 220365), (90, 210571), (118, 160605), (129, 146910), (166, 114165), (177, 107070), (215, 88146), (249, 76110), (258, 73455), (295, 64242), (354, 53535), (387, 48970), (415, 45666), (430, 44073), (498, 38055), (531, 35690), (590, 32121), (645, 29382), (747, 25370), (774, 24485), (830, 22833), (885, 21414), (1062, 17845), (1245, 15222), (1290, 14691), (1494, 12685), (1770, 10707), (1935, 9794), (2490, 7611), (2537, 7470), (2655, 7138), (3569, 5310), (3735, 5074), (3870, 4897)]