159997775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{313}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 239222784

約数和(自身を除く): 79225009

約数列:

[1, 5, 7, 23, 25, 35, 115, 127, 161, 175, 313, 575, 635, 805, 889, 1565, 2191, 2921, 3175, 4025, 4445, 7199, 7825, 10955, 14605, 20447, 22225, 35995, 39751, 50393, 54775, 73025, 102235, 179975, 198755, 251965, 278257, 511175, 914273, 993775, 1259825, 1391285, 4571365, 6399911, 6956425, 22856825, 31999555, 159997775]

約数ペア:

[(1, 159997775), (5, 31999555), (7, 22856825), (23, 6956425), (25, 6399911), (35, 4571365), (115, 1391285), (127, 1259825), (161, 993775), (175, 914273), (313, 511175), (575, 278257), (635, 251965), (805, 198755), (889, 179975), (1565, 102235), (2191, 73025), (2921, 54775), (3175, 50393), (4025, 39751), (4445, 35995), (7199, 22225), (7825, 20447), (10955, 14605)]