138106240

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6961}}^1$

素因数の和:7011

約数の個数: 64

約数和(自身を含む): 340859520

約数和(自身を除く): 202753280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1984, 2480, 3968, 4960, 6961, 9920, 13922, 19840, 27844, 34805, 55688, 69610, 111376, 139220, 215791, 222752, 278440, 431582, 445504, 556880, 863164, 891008, 1078955, 1113760, 1726328, 2157910, 2227520, 3452656, 4315820, 4455040, 6905312, 8631640, 13810624, 17263280, 27621248, 34526560, 69053120, 138106240]

約数ペア:

[(1, 138106240), (2, 69053120), (4, 34526560), (5, 27621248), (8, 17263280), (10, 13810624), (16, 8631640), (20, 6905312), (31, 4455040), (32, 4315820), (40, 3452656), (62, 2227520), (64, 2157910), (80, 1726328), (124, 1113760), (128, 1078955), (155, 891008), (160, 863164), (248, 556880), (310, 445504), (320, 431582), (496, 278440), (620, 222752), (640, 215791), (992, 139220), (1240, 111376), (1984, 69610), (2480, 55688), (3968, 34805), (4960, 27844), (6961, 19840), (9920, 13922)]