178490988

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{3499}}^1$

素因数の和:3631

約数の個数: 72

約数和(自身を含む): 490490000

約数和(自身を除く): 311999012

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 109, 117, 156, 218, 234, 327, 436, 468, 654, 981, 1308, 1417, 1962, 2834, 3499, 3924, 4251, 5668, 6998, 8502, 10497, 12753, 13996, 17004, 20994, 25506, 31491, 41988, 45487, 51012, 62982, 90974, 125964, 136461, 181948, 272922, 381391, 409383, 545844, 762782, 818766, 1144173, 1525564, 1637532, 2288346, 3432519, 4576692, 4958083, 6865038, 9916166, 13730076, 14874249, 19832332, 29748498, 44622747, 59496996, 89245494, 178490988]

約数ペア:

[(1, 178490988), (2, 89245494), (3, 59496996), (4, 44622747), (6, 29748498), (9, 19832332), (12, 14874249), (13, 13730076), (18, 9916166), (26, 6865038), (36, 4958083), (39, 4576692), (52, 3432519), (78, 2288346), (109, 1637532), (117, 1525564), (156, 1144173), (218, 818766), (234, 762782), (327, 545844), (436, 409383), (468, 381391), (654, 272922), (981, 181948), (1308, 136461), (1417, 125964), (1962, 90974), (2834, 62982), (3499, 51012), (3924, 45487), (4251, 41988), (5668, 31491), (6998, 25506), (8502, 20994), (10497, 17004), (12753, 13996)]