28885220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:357

約数の個数: 96

約数和(自身を含む): 76204800

約数和(自身を除く): 47319580

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 59, 65, 70, 91, 118, 130, 140, 182, 236, 260, 269, 295, 364, 413, 455, 538, 590, 767, 826, 910, 1076, 1180, 1345, 1534, 1652, 1820, 1883, 2065, 2690, 3068, 3497, 3766, 3835, 4130, 5369, 5380, 6994, 7532, 7670, 8260, 9415, 10738, 13988, 15340, 15871, 17485, 18830, 21476, 24479, 26845, 31742, 34970, 37660, 48958, 53690, 63484, 69940, 79355, 97916, 107380, 111097, 122395, 158710, 206323, 222194, 244790, 317420, 412646, 444388, 489580, 555485, 825292, 1031615, 1110970, 1444261, 2063230, 2221940, 2888522, 4126460, 5777044, 7221305, 14442610, 28885220]

約数ペア:

[(1, 28885220), (2, 14442610), (4, 7221305), (5, 5777044), (7, 4126460), (10, 2888522), (13, 2221940), (14, 2063230), (20, 1444261), (26, 1110970), (28, 1031615), (35, 825292), (52, 555485), (59, 489580), (65, 444388), (70, 412646), (91, 317420), (118, 244790), (130, 222194), (140, 206323), (182, 158710), (236, 122395), (260, 111097), (269, 107380), (295, 97916), (364, 79355), (413, 69940), (455, 63484), (538, 53690), (590, 48958), (767, 37660), (826, 34970), (910, 31742), (1076, 26845), (1180, 24479), (1345, 21476), (1534, 18830), (1652, 17485), (1820, 15871), (1883, 15340), (2065, 13988), (2690, 10738), (3068, 9415), (3497, 8260), (3766, 7670), (3835, 7532), (4130, 6994), (5369, 5380)]