263918930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{641}}^1$

素因数の和:875

約数の個数: 64

約数和(自身を含む): 549141120

約数和(自身を除く): 285222190

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 197, 209, 394, 418, 641, 985, 1045, 1282, 1970, 2090, 2167, 3205, 3743, 4334, 6410, 7051, 7486, 10835, 12179, 14102, 18715, 21670, 24358, 35255, 37430, 41173, 60895, 70510, 82346, 121790, 126277, 133969, 205865, 252554, 267938, 411730, 631385, 669845, 1262770, 1339690, 1389047, 2399263, 2778094, 4798526, 6945235, 11996315, 13890470, 23992630, 26391893, 52783786, 131959465, 263918930]

約数ペア:

[(1, 263918930), (2, 131959465), (5, 52783786), (10, 26391893), (11, 23992630), (19, 13890470), (22, 11996315), (38, 6945235), (55, 4798526), (95, 2778094), (110, 2399263), (190, 1389047), (197, 1339690), (209, 1262770), (394, 669845), (418, 631385), (641, 411730), (985, 267938), (1045, 252554), (1282, 205865), (1970, 133969), (2090, 126277), (2167, 121790), (3205, 82346), (3743, 70510), (4334, 60895), (6410, 41173), (7051, 37430), (7486, 35255), (10835, 24358), (12179, 21670), (14102, 18715)]