18363440

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:198

約数の個数: 80

約数和(自身を含む): 44836416

約数和(自身を除く): 26472976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 61, 71, 80, 106, 122, 142, 212, 244, 265, 284, 305, 355, 424, 488, 530, 568, 610, 710, 848, 976, 1060, 1136, 1220, 1420, 2120, 2440, 2840, 3233, 3763, 4240, 4331, 4880, 5680, 6466, 7526, 8662, 12932, 15052, 16165, 17324, 18815, 21655, 25864, 30104, 32330, 34648, 37630, 43310, 51728, 60208, 64660, 69296, 75260, 86620, 129320, 150520, 173240, 229543, 258640, 301040, 346480, 459086, 918172, 1147715, 1836344, 2295430, 3672688, 4590860, 9181720, 18363440]

約数ペア:

[(1, 18363440), (2, 9181720), (4, 4590860), (5, 3672688), (8, 2295430), (10, 1836344), (16, 1147715), (20, 918172), (40, 459086), (53, 346480), (61, 301040), (71, 258640), (80, 229543), (106, 173240), (122, 150520), (142, 129320), (212, 86620), (244, 75260), (265, 69296), (284, 64660), (305, 60208), (355, 51728), (424, 43310), (488, 37630), (530, 34648), (568, 32330), (610, 30104), (710, 25864), (848, 21655), (976, 18815), (1060, 17324), (1136, 16165), (1220, 15052), (1420, 12932), (2120, 8662), (2440, 7526), (2840, 6466), (3233, 5680), (3763, 4880), (4240, 4331)]