199931940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1987}}^1$

素因数の和:2058

約数の個数: 144

約数和(自身を含む): 668635968

約数和(自身を除く): 468704028

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 43, 45, 52, 60, 65, 78, 86, 90, 117, 129, 130, 156, 172, 180, 195, 215, 234, 258, 260, 387, 390, 430, 468, 516, 559, 585, 645, 774, 780, 860, 1118, 1170, 1290, 1548, 1677, 1935, 1987, 2236, 2340, 2580, 2795, 3354, 3870, 3974, 5031, 5590, 5961, 6708, 7740, 7948, 8385, 9935, 10062, 11180, 11922, 16770, 17883, 19870, 20124, 23844, 25155, 25831, 29805, 33540, 35766, 39740, 50310, 51662, 59610, 71532, 77493, 85441, 89415, 100620, 103324, 119220, 129155, 154986, 170882, 178830, 232479, 256323, 258310, 309972, 341764, 357660, 387465, 427205, 464958, 512646, 516620, 768969, 774930, 854410, 929916, 1025292, 1110733, 1162395, 1281615, 1537938, 1549860, 1708820, 2221466, 2324790, 2563230, 3075876, 3332199, 3844845, 4442932, 4649580, 5126460, 5553665, 6664398, 7689690, 9996597, 11107330, 13328796, 15379380, 16660995, 19993194, 22214660, 33321990, 39986388, 49982985, 66643980, 99965970, 199931940]

約数ペア:

[(1, 199931940), (2, 99965970), (3, 66643980), (4, 49982985), (5, 39986388), (6, 33321990), (9, 22214660), (10, 19993194), (12, 16660995), (13, 15379380), (15, 13328796), (18, 11107330), (20, 9996597), (26, 7689690), (30, 6664398), (36, 5553665), (39, 5126460), (43, 4649580), (45, 4442932), (52, 3844845), (60, 3332199), (65, 3075876), (78, 2563230), (86, 2324790), (90, 2221466), (117, 1708820), (129, 1549860), (130, 1537938), (156, 1281615), (172, 1162395), (180, 1110733), (195, 1025292), (215, 929916), (234, 854410), (258, 774930), (260, 768969), (387, 516620), (390, 512646), (430, 464958), (468, 427205), (516, 387465), (559, 357660), (585, 341764), (645, 309972), (774, 258310), (780, 256323), (860, 232479), (1118, 178830), (1170, 170882), (1290, 154986), (1548, 129155), (1677, 119220), (1935, 103324), (1987, 100620), (2236, 89415), (2340, 85441), (2580, 77493), (2795, 71532), (3354, 59610), (3870, 51662), (3974, 50310), (5031, 39740), (5590, 35766), (5961, 33540), (6708, 29805), (7740, 25831), (7948, 25155), (8385, 23844), (9935, 20124), (10062, 19870), (11180, 17883), (11922, 16770)]