120409880

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{227}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 277020000

約数和(自身を除く): 156610120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 149, 178, 227, 298, 356, 445, 454, 596, 712, 745, 890, 908, 1135, 1192, 1490, 1780, 1816, 2270, 2980, 3560, 4540, 5960, 9080, 13261, 20203, 26522, 33823, 40406, 53044, 66305, 67646, 80812, 101015, 106088, 132610, 135292, 161624, 169115, 202030, 265220, 270584, 338230, 404060, 530440, 676460, 808120, 1352920, 3010247, 6020494, 12040988, 15051235, 24081976, 30102470, 60204940, 120409880]

約数ペア:

[(1, 120409880), (2, 60204940), (4, 30102470), (5, 24081976), (8, 15051235), (10, 12040988), (20, 6020494), (40, 3010247), (89, 1352920), (149, 808120), (178, 676460), (227, 530440), (298, 404060), (356, 338230), (445, 270584), (454, 265220), (596, 202030), (712, 169115), (745, 161624), (890, 135292), (908, 132610), (1135, 106088), (1192, 101015), (1490, 80812), (1780, 67646), (1816, 66305), (2270, 53044), (2980, 40406), (3560, 33823), (4540, 26522), (5960, 20203), (9080, 13261)]