28401428

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{641}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 58242240

約数和(自身を除く): 29840812

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 53, 76, 106, 209, 212, 418, 583, 641, 836, 1007, 1166, 1282, 2014, 2332, 2564, 4028, 7051, 11077, 12179, 14102, 22154, 24358, 28204, 33973, 44308, 48716, 67946, 133969, 135892, 267938, 373703, 535876, 645487, 747406, 1290974, 1494812, 2581948, 7100357, 14200714, 28401428]

約数ペア:

[(1, 28401428), (2, 14200714), (4, 7100357), (11, 2581948), (19, 1494812), (22, 1290974), (38, 747406), (44, 645487), (53, 535876), (76, 373703), (106, 267938), (209, 135892), (212, 133969), (418, 67946), (583, 48716), (641, 44308), (836, 33973), (1007, 28204), (1166, 24358), (1282, 22154), (2014, 14102), (2332, 12179), (2564, 11077), (4028, 7051)]