9181720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 21695040

約数和(自身を除く): 12513320

約数列:

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

約数ペア:

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