138218240

素因数分解:

$2^8\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1301}}^1$

素因数の和:1405

約数の個数: 72

約数和(自身を含む): 335322288

約数和(自身を除く): 197104048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 83, 128, 160, 166, 256, 320, 332, 415, 640, 664, 830, 1280, 1301, 1328, 1660, 2602, 2656, 3320, 5204, 5312, 6505, 6640, 10408, 10624, 13010, 13280, 20816, 21248, 26020, 26560, 41632, 52040, 53120, 83264, 104080, 106240, 107983, 166528, 208160, 215966, 333056, 416320, 431932, 539915, 832640, 863864, 1079830, 1665280, 1727728, 2159660, 3455456, 4319320, 6910912, 8638640, 13821824, 17277280, 27643648, 34554560, 69109120, 138218240]

約数ペア:

[(1, 138218240), (2, 69109120), (4, 34554560), (5, 27643648), (8, 17277280), (10, 13821824), (16, 8638640), (20, 6910912), (32, 4319320), (40, 3455456), (64, 2159660), (80, 1727728), (83, 1665280), (128, 1079830), (160, 863864), (166, 832640), (256, 539915), (320, 431932), (332, 416320), (415, 333056), (640, 215966), (664, 208160), (830, 166528), (1280, 107983), (1301, 106240), (1328, 104080), (1660, 83264), (2602, 53120), (2656, 52040), (3320, 41632), (5204, 26560), (5312, 26020), (6505, 21248), (6640, 20816), (10408, 13280), (10624, 13010)]