28967820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:252

約数の個数: 144

約数和(自身を含む): 96526080

約数和(自身を除く): 67558260

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 59, 60, 70, 84, 98, 105, 118, 140, 147, 167, 177, 196, 210, 236, 245, 294, 295, 334, 354, 413, 420, 490, 501, 588, 590, 668, 708, 735, 826, 835, 885, 980, 1002, 1169, 1180, 1239, 1470, 1652, 1670, 1770, 2004, 2065, 2338, 2478, 2505, 2891, 2940, 3340, 3507, 3540, 4130, 4676, 4956, 5010, 5782, 5845, 6195, 7014, 8183, 8260, 8673, 9853, 10020, 11564, 11690, 12390, 14028, 14455, 16366, 17346, 17535, 19706, 23380, 24549, 24780, 28910, 29559, 32732, 34692, 35070, 39412, 40915, 43365, 49098, 49265, 57820, 59118, 68971, 70140, 81830, 86730, 98196, 98530, 118236, 122745, 137942, 147795, 163660, 173460, 197060, 206913, 245490, 275884, 295590, 344855, 413826, 482797, 490980, 591180, 689710, 827652, 965594, 1034565, 1379420, 1448391, 1931188, 2069130, 2413985, 2896782, 4138260, 4827970, 5793564, 7241955, 9655940, 14483910, 28967820]

約数ペア:

[(1, 28967820), (2, 14483910), (3, 9655940), (4, 7241955), (5, 5793564), (6, 4827970), (7, 4138260), (10, 2896782), (12, 2413985), (14, 2069130), (15, 1931188), (20, 1448391), (21, 1379420), (28, 1034565), (30, 965594), (35, 827652), (42, 689710), (49, 591180), (59, 490980), (60, 482797), (70, 413826), (84, 344855), (98, 295590), (105, 275884), (118, 245490), (140, 206913), (147, 197060), (167, 173460), (177, 163660), (196, 147795), (210, 137942), (236, 122745), (245, 118236), (294, 98530), (295, 98196), (334, 86730), (354, 81830), (413, 70140), (420, 68971), (490, 59118), (501, 57820), (588, 49265), (590, 49098), (668, 43365), (708, 40915), (735, 39412), (826, 35070), (835, 34692), (885, 32732), (980, 29559), (1002, 28910), (1169, 24780), (1180, 24549), (1239, 23380), (1470, 19706), (1652, 17535), (1670, 17346), (1770, 16366), (2004, 14455), (2065, 14028), (2338, 12390), (2478, 11690), (2505, 11564), (2891, 10020), (2940, 9853), (3340, 8673), (3507, 8260), (3540, 8183), (4130, 7014), (4676, 6195), (4956, 5845), (5010, 5782)]