178391164

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{281}}^1$

素因数の和:419

約数の個数: 72

約数和(自身を含む): 378060480

約数和(自身を除く): 199669316

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 79, 82, 98, 158, 164, 196, 281, 287, 316, 553, 562, 574, 1106, 1124, 1148, 1967, 2009, 2212, 3239, 3871, 3934, 4018, 6478, 7742, 7868, 8036, 11521, 12956, 13769, 15484, 22199, 22673, 23042, 27538, 44398, 45346, 46084, 55076, 80647, 88796, 90692, 155393, 158711, 161294, 310786, 317422, 322588, 564529, 621572, 634844, 910159, 1087751, 1129058, 1820318, 2175502, 2258116, 3640636, 4351004, 6371113, 12742226, 25484452, 44597791, 89195582, 178391164]

約数ペア:

[(1, 178391164), (2, 89195582), (4, 44597791), (7, 25484452), (14, 12742226), (28, 6371113), (41, 4351004), (49, 3640636), (79, 2258116), (82, 2175502), (98, 1820318), (158, 1129058), (164, 1087751), (196, 910159), (281, 634844), (287, 621572), (316, 564529), (553, 322588), (562, 317422), (574, 310786), (1106, 161294), (1124, 158711), (1148, 155393), (1967, 90692), (2009, 88796), (2212, 80647), (3239, 55076), (3871, 46084), (3934, 45346), (4018, 44398), (6478, 27538), (7742, 23042), (7868, 22673), (8036, 22199), (11521, 15484), (12956, 13769)]