55181720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1511}}^1$

素因数の和:1616

約数の個数: 64

約数和(自身を含む): 137168640

約数和(自身を除く): 81986920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 83, 88, 110, 166, 220, 332, 415, 440, 664, 830, 913, 1511, 1660, 1826, 3022, 3320, 3652, 4565, 6044, 7304, 7555, 9130, 12088, 15110, 16621, 18260, 30220, 33242, 36520, 60440, 66484, 83105, 125413, 132968, 166210, 250826, 332420, 501652, 627065, 664840, 1003304, 1254130, 1379543, 2508260, 2759086, 5016520, 5518172, 6897715, 11036344, 13795430, 27590860, 55181720]

約数ペア:

[(1, 55181720), (2, 27590860), (4, 13795430), (5, 11036344), (8, 6897715), (10, 5518172), (11, 5016520), (20, 2759086), (22, 2508260), (40, 1379543), (44, 1254130), (55, 1003304), (83, 664840), (88, 627065), (110, 501652), (166, 332420), (220, 250826), (332, 166210), (415, 132968), (440, 125413), (664, 83105), (830, 66484), (913, 60440), (1511, 36520), (1660, 33242), (1826, 30220), (3022, 18260), (3320, 16621), (3652, 15110), (4565, 12088), (6044, 9130), (7304, 7555)]