28177415

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:152

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 16612345

約数列:

[1, 5, 7, 17, 23, 29, 35, 71, 85, 115, 119, 145, 161, 203, 355, 391, 493, 497, 595, 667, 805, 1015, 1207, 1633, 1955, 2059, 2465, 2485, 2737, 3335, 3451, 4669, 6035, 8165, 8449, 10295, 11339, 11431, 13685, 14413, 17255, 23345, 27761, 35003, 42245, 47357, 56695, 57155, 72065, 79373, 138805, 175015, 194327, 236785, 245021, 331499, 396865, 805069, 971635, 1225105, 1657495, 4025345, 5635483, 28177415]

約数ペア:

[(1, 28177415), (5, 5635483), (7, 4025345), (17, 1657495), (23, 1225105), (29, 971635), (35, 805069), (71, 396865), (85, 331499), (115, 245021), (119, 236785), (145, 194327), (161, 175015), (203, 138805), (355, 79373), (391, 72065), (493, 57155), (497, 56695), (595, 47357), (667, 42245), (805, 35003), (1015, 27761), (1207, 23345), (1633, 17255), (1955, 14413), (2059, 13685), (2465, 11431), (2485, 11339), (2737, 10295), (3335, 8449), (3451, 8165), (4669, 6035)]