4222820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 10725120

約数和(自身を除く): 6502300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 139, 140, 155, 196, 217, 245, 278, 310, 434, 490, 556, 620, 695, 868, 973, 980, 1085, 1390, 1519, 1946, 2170, 2780, 3038, 3892, 4309, 4340, 4865, 6076, 6811, 7595, 8618, 9730, 13622, 15190, 17236, 19460, 21545, 27244, 30163, 30380, 34055, 43090, 60326, 68110, 86180, 120652, 136220, 150815, 211141, 301630, 422282, 603260, 844564, 1055705, 2111410, 4222820]

約数ペア:

[(1, 4222820), (2, 2111410), (4, 1055705), (5, 844564), (7, 603260), (10, 422282), (14, 301630), (20, 211141), (28, 150815), (31, 136220), (35, 120652), (49, 86180), (62, 68110), (70, 60326), (98, 43090), (124, 34055), (139, 30380), (140, 30163), (155, 27244), (196, 21545), (217, 19460), (245, 17236), (278, 15190), (310, 13622), (434, 9730), (490, 8618), (556, 7595), (620, 6811), (695, 6076), (868, 4865), (973, 4340), (980, 4309), (1085, 3892), (1390, 3038), (1519, 2780), (1946, 2170)]