640899450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{74959}}^1$

素因数の和:74996

約数の個数: 72

約数和(自身を含む): 1812532800

約数和(自身を除く): 1171633350

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 38, 45, 50, 57, 75, 90, 95, 114, 150, 171, 190, 225, 285, 342, 450, 475, 570, 855, 950, 1425, 1710, 2850, 4275, 8550, 74959, 149918, 224877, 374795, 449754, 674631, 749590, 1124385, 1349262, 1424221, 1873975, 2248770, 2848442, 3373155, 3747950, 4272663, 5621925, 6746310, 7121105, 8545326, 11243850, 12817989, 14242210, 16865775, 21363315, 25635978, 33731550, 35605525, 42726630, 64089945, 71211050, 106816575, 128179890, 213633150, 320449725, 640899450]

約数ペア:

[(1, 640899450), (2, 320449725), (3, 213633150), (5, 128179890), (6, 106816575), (9, 71211050), (10, 64089945), (15, 42726630), (18, 35605525), (19, 33731550), (25, 25635978), (30, 21363315), (38, 16865775), (45, 14242210), (50, 12817989), (57, 11243850), (75, 8545326), (90, 7121105), (95, 6746310), (114, 5621925), (150, 4272663), (171, 3747950), (190, 3373155), (225, 2848442), (285, 2248770), (342, 1873975), (450, 1424221), (475, 1349262), (570, 1124385), (855, 749590), (950, 674631), (1425, 449754), (1710, 374795), (2850, 224877), (4275, 149918), (8550, 74959)]