28660884

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{617}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 78906240

約数和(自身を除く): 50245356

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 79, 84, 98, 147, 158, 196, 237, 294, 316, 474, 553, 588, 617, 948, 1106, 1234, 1659, 1851, 2212, 2468, 3318, 3702, 3871, 4319, 6636, 7404, 7742, 8638, 11613, 12957, 15484, 17276, 23226, 25914, 30233, 46452, 48743, 51828, 60466, 90699, 97486, 120932, 146229, 181398, 194972, 292458, 341201, 362796, 584916, 682402, 1023603, 1364804, 2047206, 2388407, 4094412, 4776814, 7165221, 9553628, 14330442, 28660884]

約数ペア:

[(1, 28660884), (2, 14330442), (3, 9553628), (4, 7165221), (6, 4776814), (7, 4094412), (12, 2388407), (14, 2047206), (21, 1364804), (28, 1023603), (42, 682402), (49, 584916), (79, 362796), (84, 341201), (98, 292458), (147, 194972), (158, 181398), (196, 146229), (237, 120932), (294, 97486), (316, 90699), (474, 60466), (553, 51828), (588, 48743), (617, 46452), (948, 30233), (1106, 25914), (1234, 23226), (1659, 17276), (1851, 15484), (2212, 12957), (2468, 11613), (3318, 8638), (3702, 7742), (3871, 7404), (4319, 6636)]